Add day 15

AdventOfCode.csproj

@@ -2,9 +2,10 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net7.0</TargetFramework>
+        <TargetFramework>net9.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
+        <LangVersion>latest</LangVersion>
     </PropertyGroup>
 
     <ItemGroup>
@@ -12,4 +13,9 @@
       <PackageReference Include="Spectre.Console" Version="0.45.0" />
     </ItemGroup>
 
+    <ItemGroup>
+      <None Remove="Inputs\*" />
+      <EmbeddedResource Include="Inputs\*" />
+    </ItemGroup>
+
 </Project>

DayBenchmarker.cs

@@ -7,7 +7,13 @@ namespace AdventOfCode;
 [MemoryDiagnoser(false)]
 public class DayBenchmark
 {
-    private Day Day => new Day15();
+    private Day Day { get; } = new Day10();
+
+    [GlobalSetup]
+    public void Setup()
+    {
+        Day.ReadInput();
+    }
 
     [Benchmark]
     public void Part1()

Days/Day.cs

@@ -1,3 +1,5 @@
+using System.Reflection;
+
 namespace AdventOfCode.Days;
 
 public abstract class Day
@@ -5,9 +7,19 @@ public abstract class Day
     public abstract int Number { get; }
     public abstract string Name { get; }
 
+    protected string Input { get; private set; } = null!;
+
     public abstract void RunPart1(bool display = true);
     public abstract void RunPart2(bool display = true);
 
+    public void ReadInput()
+    {
+        using var inputStream = Assembly.GetExecutingAssembly()
+            .GetManifestResourceStream($"AdventOfCode.Inputs.Day{Number}.txt")!;
+
+        Input = new StreamReader(inputStream).ReadToEnd();
+    }
+
     public override string ToString()
     {
         return $"Day {Number}: {Name}";

Days/Day10.cs

@@ -1,3 +1,5 @@
+using System.Collections.Frozen;
+using System.Numerics;
 using Spectre.Console;
 
 namespace AdventOfCode.Days;
@@ -5,283 +7,163 @@ namespace AdventOfCode.Days;
 public class Day10 : Day
 {
     public override int Number => 10;
-    public override string Name => "Cathode-Ray Tube";
+    public override string Name => "Hoof It";
+
+    private const int MapSize = 60;
+
     public override void RunPart1(bool display = true)
     {
-        int cycle = 1;
-        int x = 1;
-        long sum = 0;
+        var hikingTrailsScores = 0;
 
-        // Increment sum when needed
-        void IncrementCycle()
+        var (heightMap, trailHeads) = ParseMap();
+
+        var hikingTrails = new HashSet<Point>();
+
+        foreach (var trailHead in trailHeads)
         {
-            cycle++;
+            hikingTrails.Clear();
 
-            // Check for signal stength at the start of a cycle
-            if ((cycle + 20) % 40 == 0)
-            {
-                sum += x * cycle;
-            }
-        }
+            GetHikingTrailScore(trailHead, -1);
 
-        foreach (var line in Input.ReadAllLines())
-        {
-            // noop
-            if (line == "noop")
-            {
-                // noop finished, go to next cycle
-                IncrementCycle();
-            }
-            // addx
-            else
-            {
-                var split = line.Split(' ');
-                var v = int.Parse(split[1]);
-
-                // Prepare addx
-                IncrementCycle();
-
-                // addx finished, add to x and then go to next cycle
-                x += v;
-                IncrementCycle();
-            }
+            hikingTrailsScores += hikingTrails.Count;
         }
 
         if (display)
         {
-            AnsiConsole.MarkupLine($"[green]Sum of signal strengths: [yellow]{sum}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Sum of scores of hiking trails: [yellow]{hikingTrailsScores}[/][/]");
+        }
+
+        return;
+
+        void GetHikingTrailScore(Point position, int previousHeight)
+        {
+            // Out of bounds
+            if (position is { X: < 0 or >= MapSize } or { Y: < 0 or >= MapSize })
+            {
+                return;
+            }
+
+            var height = heightMap[position.X, position.Y];
+
+            if (height - previousHeight is not 1)
+            {
+                return;
+            }
+
+            if (height == 9)
+            {
+                hikingTrails.Add(position);
+            }
+
+
+            GetHikingTrailScore(position + (1, 0), height);
+            GetHikingTrailScore(position + (-1, 0), height);
+            GetHikingTrailScore(position + (0, 1), height);
+            GetHikingTrailScore(position + (0, -1), height);
         }
     }
 
     public override void RunPart2(bool display = true)
     {
-        // Setup the CRT
-        const char litPixel = '#';
-        const char darkPixel = '.';
+        var (heightMap, trailHeads) = ParseMap();
 
-        const int rowCount = 6;
-        const int columnCount = 40;
-        var crt = new char[rowCount, columnCount];
-        var crtCanvas = new Canvas(columnCount, rowCount);
+        var totalRating = 0;
 
-        // Now cycle is the position where the CRT is drawing (need to offset by 1 in the grid)
-        int cycle = 1;
-        // x is the position of the sprite
-        int x = 1;
-
-        // Draw first pixel
-        crt[0, 0] = litPixel;
-        crtCanvas.SetPixel(0, 0, Color.Red);
-
-        // Increment sum when needed
-        void IncrementCycle()
+        foreach (var trailHead in trailHeads)
         {
-            cycle++;
+            GetHikingTrailRating(trailHead, -1);
+        }
 
-            // We're done drawing the crt
-            if (cycle > 240)
+        if (display)
+        {
+            AnsiConsole.MarkupLine($"[green]Total rating of hiking trails: [yellow]{totalRating}[/][/]");
+        }
+
+        return;
+
+        void GetHikingTrailRating(Point position, int previousHeight)
+        {
+            // Out of bounds
+            if (position is { X: < 0 or >= MapSize } or { Y: < 0 or >= MapSize })
             {
                 return;
             }
 
-            // Draw a white or black pixel
-            int row = (cycle - 1) / columnCount;
-            int column = (cycle - 1) % columnCount;
+            var height = heightMap[position.X, position.Y];
 
-            // The CRT is drawing on the sprite
-            if (column == x - 1 || column == x || column == x + 1)
+            if (height - previousHeight is not 1)
             {
-                crt[row, column] = litPixel;
-                crtCanvas.SetPixel(column, row, (cycle + row) % 2 == 0 ? Color.Green : Color.Red);
+                return;
             }
-            else
+
+            if (height == 9)
             {
-                crt[row, column] = darkPixel;
-                crtCanvas.SetPixel(column, row, Color.Black);
+                totalRating++;
             }
-        }
 
-        foreach (var line in Input.ReadAllLines())
-        {
-            // noop
-            if (line == "noop")
-            {
-                // noop finished, go to next cycle
-                IncrementCycle();
-            }
-            // addx
-            else
-            {
-                var split = line.Split(' ');
-                var v = int.Parse(split[1]);
-
-                // Prepare addx
-                IncrementCycle();
-
-                // addx finished, add to x and then go to next cycle
-                x += v;
-                IncrementCycle();
-            }
-        }
-
-        // Print the CRT
-        if (display)
-        {
-            AnsiConsole.Write(crtCanvas);
+            GetHikingTrailRating(position + (1, 0), height);
+            GetHikingTrailRating(position + (-1, 0), height);
+            GetHikingTrailRating(position + (0, 1), height);
+            GetHikingTrailRating(position + (0, -1), height);
         }
     }
 
-    #region Input
+    private (byte[,] HeightMap, List<Point> TrailHeads) ParseMap()
+    {
+        var heightMap = new byte[MapSize, MapSize];
+        var trailHeads = new List<Point>();
 
-    public const string Input =
-    """
-    noop
-    noop
-    addx 15
-    addx -10
-    noop
-    noop
-    addx 3
-    noop
-    noop
-    addx 7
-    addx 1
-    addx 4
-    addx -1
-    addx 1
-    addx 5
-    addx 1
-    noop
-    noop
-    addx 5
-    addx -1
-    noop
-    addx 3
-    noop
-    addx 3
-    addx -38
-    noop
-    addx 3
-    addx 2
-    addx 5
-    addx 2
-    addx 26
-    addx -21
-    addx -2
-    addx 5
-    addx 2
-    addx -14
-    addx 15
-    noop
-    addx 7
-    noop
-    addx 2
-    addx -22
-    addx 23
-    addx 2
-    addx 5
-    addx -40
-    noop
-    noop
-    addx 3
-    addx 2
-    noop
-    addx 24
-    addx -19
-    noop
-    noop
-    noop
-    addx 5
-    addx 5
-    addx 2
-    noop
-    noop
-    noop
-    noop
-    addx 7
-    noop
-    addx 3
-    noop
-    addx 3
-    addx -2
-    addx 2
-    addx 5
-    addx -38
-    noop
-    noop
-    noop
-    addx 5
-    addx 2
-    addx -1
-    addx 2
-    addx 30
-    addx -23
-    noop
-    noop
-    noop
-    noop
-    addx 3
-    addx 5
-    addx -11
-    addx 12
-    noop
-    addx 6
-    addx 1
-    noop
-    addx 4
-    addx 3
-    noop
-    addx -40
-    addx 4
-    addx 28
-    addx -27
-    addx 5
-    addx 2
-    addx 5
-    noop
-    noop
-    addx -2
-    addx 2
-    addx 5
-    addx 3
-    noop
-    addx 2
-    addx -25
-    addx 30
-    noop
-    addx 3
-    addx -2
-    addx 2
-    addx 5
-    addx -39
-    addx 29
-    addx -27
-    addx 5
-    noop
-    noop
-    noop
-    addx 4
-    noop
-    addx 1
-    addx 2
-    addx 5
-    addx 2
-    noop
-    noop
-    noop
-    noop
-    addx 5
-    addx 1
-    noop
-    addx 2
-    addx 5
-    addx -32
-    addx 34
-    noop
-    noop
-    noop
-    noop
-    """;
+        var y = 0;
+        foreach (var line in Input.AsSpan().EnumerateLines())
+        {
+            var x = 0;
+            foreach (var height in line)
+            {
+                var heightValue = height - '0';
 
-    #endregion
+                if (heightValue is 0)
+                {
+                    trailHeads.Add(new Point(x, y));
+                }
+
+                heightMap[x, y] = (byte)heightValue;
+
+                x++;
+            }
+
+            y++;
+        }
+
+        return (heightMap, trailHeads);
+    }
+
+
+    private readonly record struct Point(int X, int Y)
+        : IAdditionOperators<Point, Point, Point>,
+            ISubtractionOperators<Point, Point, Point>,
+            IMultiplyOperators<Point, int, Point>
+    {
+        public static Point operator +(Point left, Point right)
+        {
+            return new Point(left.X + right.X, left.Y + right.Y);
+        }
+
+        public static Point operator -(Point left, Point right)
+        {
+            return new Point(left.X - right.X, left.Y - right.Y);
+        }
+
+        public static Point operator *(Point left, int right)
+        {
+            return new Point(left.X * right, left.Y * right);
+        }
+
+        public static Point operator *(int left, Point right)
+        {
+            return new Point(right.X * left, right.Y * left);
+        }
+
+        public static implicit operator Point((int X, int Y) point)
+            => new(point.X, point.Y);
+    }
 }

Days/Day11.cs

@@ -1,233 +1,127 @@
-using System.Collections.Immutable;
+using System.Collections.Frozen;
+using System.Numerics;
 using Spectre.Console;
 
 namespace AdventOfCode.Days;
 
-public class Monkey
-{
-    public int Number { get; }
-    public long InspectionCount { get; private set; }
-
-    private readonly Queue<long> _items;
-    private readonly Func<long, long> _operation;
-    private readonly long _testDivider;
-    private readonly int _testFailMonkey;
-    private readonly int _testSuccessMonkey;
-
-    public Monkey(int number, IEnumerable<long> items, Func<long, long> operation, long testDivider, int testFailMonkey, int testSuccessMonkey)
-    {
-        Number = number;
-        _operation = operation;
-        _testDivider = testDivider;
-        _testFailMonkey = testFailMonkey;
-        _testSuccessMonkey = testSuccessMonkey;
-
-        InspectionCount = 0;
-        _items = new Queue<long>(items);
-    }
-
-    public void AddItem(long item)
-    {
-        _items.Enqueue(item);
-    }
-
-    public bool ThrowItem(IImmutableList<Monkey> monkeys, bool divideWorry = true)
-    {
-        // Return false if there's no item to throw
-        if (_items.Count < 1)
-        {
-            return false;
-        }
-
-        // Increment inspection count
-        InspectionCount++;
-
-        // Take next item to throw
-        var item = _items.Dequeue();
-
-        // Apply the operation on worry level
-        var newValue = _operation(item);
-
-        // Divide worry level by 3 before test
-        if (divideWorry)
-        {
-            newValue = newValue / 3;
-        }
-
-        // Even using this simplification, it's still needed to use longs because
-        // they sometime overflow before being simplified in part 2
-        newValue = newValue % (2*3*5*7*11*13*17*19);
-
-        // Test is a success
-        if (newValue % _testDivider == 0)
-        {
-            monkeys[_testSuccessMonkey].AddItem(newValue);
-        }
-        // Test is a fail
-        else
-        {
-            monkeys[_testFailMonkey].AddItem(newValue);
-        }
-
-        return true;
-    }
-}
-
 public class Day11 : Day
 {
     public override int Number => 11;
-    public override string Name => "Monkey in the Middle";
+    public override string Name => "Plutonian Pebbles";
+
+    private const int BlinkIterations = 25;
+
     public override void RunPart1(bool display = true)
     {
-        const int roundsCount = 20;
+        var stones = ParseStones();
 
-        var monkeys = ParseMonkeys();
-
-        // Do 20 rounds
-        for (int round = 0; round < roundsCount; round++)
+        for (var iteration = 0; iteration < BlinkIterations; iteration++)
         {
-            foreach (var monkey in monkeys)
+            var index = 0;
+
+            while (index < stones.Count)
             {
-                // Throw items while there's some
-                while (monkey.ThrowItem(monkeys)) { }
+                var stone = stones[index];
+                var stoneString = stone.ToString();
+
+                if (stone is 0)
+                {
+                    stones[index] = 1;
+                }
+                else if (stoneString.Length % 2 == 0)
+                {
+                    var splitIndex = stoneString.Length / 2;
+
+                    var leftStone = long.Parse(stoneString[..splitIndex]);
+                    var rightStone = long.Parse(stoneString[splitIndex..]);
+
+                    stones[index] = leftStone;
+                    stones.Insert(index + 1, rightStone);
+
+                    index++;
+                }
+                else
+                {
+                    stones[index] = stone * 2024;
+                }
+
+                index++;
             }
         }
 
-        var topMonkeys = monkeys.OrderByDescending(m => m.InspectionCount).Take(2).ToList();
-
         if (display)
         {
-            AnsiConsole.MarkupLine($"[green]Monkey business: [yellow]{topMonkeys[0].InspectionCount * topMonkeys[1].InspectionCount}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Number of stones after blinking {BlinkIterations} times: [yellow]{stones.Count}[/][/]");
         }
     }
 
     public override void RunPart2(bool display = true)
     {
-        const int roundsCount = 10_000;
+        var stones = ParseStones().ToDictionary(s => s, _ => 1L);
 
-        var monkeys = ParseMonkeys();
-
-        // Do 10 000 rounds
-        for (int round = 0; round < roundsCount; round++)
+        for (var iteration = 0; iteration < (BlinkIterations * 3); iteration++)
         {
-            foreach (var monkey in monkeys)
+            var stonesToIterate = stones.ToList();
+
+            foreach (var (stone, count) in stonesToIterate)
             {
-                // Throw items while there's some
-                while (monkey.ThrowItem(monkeys, false)) { }
+                var stoneString = stone.ToString();
+
+                if (stone is 0)
+                {
+                    SafeAdd(stones, 1, count);
+                }
+                else if (stoneString.Length % 2 == 0)
+                {
+                    var splitIndex = stoneString.Length / 2;
+
+                    var leftStone = long.Parse(stoneString[..splitIndex]);
+                    var rightStone = long.Parse(stoneString[splitIndex..]);
+
+                    SafeAdd(stones, leftStone, count);
+                    SafeAdd(stones, rightStone, count);
+                }
+                else
+                {
+                    SafeAdd(stones, stone * 2024, count);
+
+                }
+
+                SafeAdd(stones, stone, -count);
             }
         }
 
-        var topMonkeys = monkeys.OrderByDescending(m => m.InspectionCount).Take(2).ToList();
+        var stonesCount = stones.Sum(p => p.Value);
 
         if (display)
         {
-            AnsiConsole.MarkupLine($"[green]Monkey business: [yellow]{topMonkeys[0].InspectionCount * topMonkeys[1].InspectionCount}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Number of stones after blinking {BlinkIterations} times: [yellow]{stonesCount}[/][/]");
         }
     }
 
-    private static IImmutableList<Monkey> ParseMonkeys()
+    private List<long> ParseStones()
     {
-        var monkeys = new List<Monkey>();
+        var stones = new List<long>();
 
-        // Split by monkey description
-        foreach (var monkey in Input.ReplaceLineEndings("\n").Split("\n\n"))
+        var span = Input.AsSpan();
+
+        foreach (var stoneRange in span.Split(' '))
         {
-            var split = monkey.Split('\n');
-            var numberLine = split[0];
-            var itemsLine = split[1];
-            var operationLine = split[2];
-            var testDividerLine = split[3];
-            var testSuccessLine = split[4];
-            var testFailLine = split[5];
-
-            // Monkey attributes
-            var number = int.Parse(numberLine[numberLine.LastIndexOf(' ')..^1]);
-            var items = itemsLine[(itemsLine.IndexOf(':') + 2)..].Split(", ").Select(long.Parse);
-
-            // Read operation
-            operationLine = operationLine[(operationLine.IndexOf('=') + 2)..];
-            long? rightOperand = operationLine.EndsWith("old") ? null : long.Parse(operationLine.Split('+', '*')[1].Trim());
-
-            Func<long, long> operation = operationLine.Contains('+') switch
-            {
-                true => rightOperand is null
-                    ? old => old + old
-                    : old => old + (int)rightOperand,
-                false => rightOperand is null
-                    ? old => old * old
-                    : old => old * (int)rightOperand
-            };
-
-            var testDivider = long.Parse(testDividerLine[testDividerLine.LastIndexOf(' ')..]);
-            var testSuccessMonkey = int.Parse(testSuccessLine[testSuccessLine.LastIndexOf(' ')..]);
-            var testFailMonkey = int.Parse(testFailLine[testFailLine.LastIndexOf(' ')..]);
-
-            monkeys.Add(new Monkey(number, items, operation, testDivider, testFailMonkey, testSuccessMonkey));
+            stones.Add(long.Parse(span[stoneRange]));
         }
 
-        return monkeys.ToImmutableList();
+        return stones;
     }
 
-    #region Input
-
-    public const string Input =
-    """
-    Monkey 0:
-      Starting items: 89, 95, 92, 64, 87, 68
-      Operation: new = old * 11
-      Test: divisible by 2
-        If true: throw to monkey 7
-        If false: throw to monkey 4
-
-    Monkey 1:
-      Starting items: 87, 67
-      Operation: new = old + 1
-      Test: divisible by 13
-        If true: throw to monkey 3
-        If false: throw to monkey 6
-
-    Monkey 2:
-      Starting items: 95, 79, 92, 82, 60
-      Operation: new = old + 6
-      Test: divisible by 3
-        If true: throw to monkey 1
-        If false: throw to monkey 6
-
-    Monkey 3:
-      Starting items: 67, 97, 56
-      Operation: new = old * old
-      Test: divisible by 17
-        If true: throw to monkey 7
-        If false: throw to monkey 0
-
-    Monkey 4:
-      Starting items: 80, 68, 87, 94, 61, 59, 50, 68
-      Operation: new = old * 7
-      Test: divisible by 19
-        If true: throw to monkey 5
-        If false: throw to monkey 2
-
-    Monkey 5:
-      Starting items: 73, 51, 76, 59
-      Operation: new = old + 8
-      Test: divisible by 7
-        If true: throw to monkey 2
-        If false: throw to monkey 1
-
-    Monkey 6:
-      Starting items: 92
-      Operation: new = old + 5
-      Test: divisible by 11
-        If true: throw to monkey 3
-        If false: throw to monkey 0
-
-    Monkey 7:
-      Starting items: 99, 76, 78, 76, 79, 90, 89
-      Operation: new = old + 7
-      Test: divisible by 5
-        If true: throw to monkey 4
-        If false: throw to monkey 5
-    """;
-
-    #endregion
+    private void SafeAdd(Dictionary<long, long> dictionary, long key, long valueToAdd)
+    {
+        if (dictionary.TryGetValue(key, out var currentValue))
+        {
+            dictionary[key] = currentValue + valueToAdd;
+        }
+        else
+        {
+            dictionary[key] = valueToAdd;
+        }
+    }
 }

Days/Day12.cs

@@ -1,3 +1,5 @@
+using System.Collections.Frozen;
+using System.Numerics;
 using Spectre.Console;
 
 namespace AdventOfCode.Days;
@@ -5,329 +7,149 @@ namespace AdventOfCode.Days;
 public class Day12 : Day
 {
     public override int Number => 12;
-    public override string Name => "Hill Climbing Algorithm";
+    public override string Name => "Garden Groups";
 
-    public const int EndElevation = 25;
-
-    // Color map of elevation: blue -> green -> yellow -> orange -> red
-    private readonly Color[] _colorMap =
-    {
-        Color.Blue1,
-        Color.DodgerBlue1,
-        Color.DeepSkyBlue1,
-        Color.Turquoise2,
-        Color.Cyan1,
-        Color.Cyan2,
-        Color.MediumSpringGreen,
-        Color.SpringGreen1,
-        Color.SpringGreen2_1,
-        Color.Green1,
-        Color.DarkOliveGreen2,
-        Color.GreenYellow,
-        Color.DarkOliveGreen1,
-        Color.Yellow2,
-        Color.Khaki1,
-        Color.Yellow1,
-        Color.NavajoWhite1,
-        Color.LightGoldenrod2_1,
-        Color.Gold1,
-        Color.SandyBrown,
-        Color.Orange1,
-        Color.DarkOrange,
-        Color.OrangeRed1,
-        Color.IndianRed1,
-        Color.HotPink,
-        Color.MediumOrchid1_1
-    };
-
-    private (int x, int y) _end;
-    private (int x, int y) _start;
+    private const int GridSize = 140;
 
     public override void RunPart1(bool display = true)
     {
-        var map = ParseMap();
-        var canvas = DrawMap(map);
+        var areas = ParseAreas();
 
-        // Test all possible solutions
-        var minimumPathLength = ExplorePath(map);
+        var visited = new HashSet<Point>();
+        var totalPrice = 0;
 
-        // Draw solution path
-        foreach (var (x, y) in minimumPathLength.path)
+        var currentArea = 0;
+        var currentPerimeter = 0;
+
+        for (var y = 0; y < GridSize; y++)
         {
-            canvas.SetPixel(x, y, Color.White);
+            for (var x = 0; x < GridSize; x++)
+            {
+                // Skip already visited points
+                if (visited.Contains(new Point(x, y)))
+                {
+                    continue;
+                }
+
+                var id = areas[x, y];
+
+                ComputeAreaPrice(new Point(x, y), id, ref currentArea, ref currentPerimeter);
+
+                // Add price of fencing this area
+                totalPrice += currentArea * currentPerimeter;
+
+                currentArea = 0;
+                currentPerimeter = 0;
+            }
         }
 
         if (display)
         {
-            AnsiConsole.Write(canvas);
-            AnsiConsole.WriteLine();
+            AnsiConsole.MarkupLine($"[green]Total pricing: [yellow]{totalPrice}[/][/]");
+        }
 
-            AnsiConsole.MarkupLine($"[green]Minimum path length: [yellow]{minimumPathLength.length}[/][/]");
+        return;
+
+        void ComputeAreaPrice(Point position, byte id, ref int area, ref int perimeter)
+        {
+            if (!visited.Add(position))
+            {
+                return;
+            }
+
+            // Update area and perimeter
+            area++;
+            perimeter += 4;
+
+            var left = position with { X = position.X - 1 };
+            var right = position with { X = position.X + 1 };
+            var up = position with { Y = position.Y - 1 };
+            var down = position with { Y = position.Y + 1 };
+
+            if (left is { X: >= 0 and < GridSize } && areas[left.X, left.Y] == id)
+            {
+                perimeter--;
+
+                ComputeAreaPrice(left, id, ref area, ref perimeter);
+            }
+
+            if (right is { X: >= 0 and < GridSize } && areas[right.X, right.Y] == id)
+            {
+                perimeter--;
+
+                ComputeAreaPrice(right, id, ref area, ref perimeter);
+            }
+
+            if (up is { Y: >= 0 and < GridSize } && areas[up.X, up.Y] == id)
+            {
+                perimeter--;
+
+                ComputeAreaPrice(up, id, ref area, ref perimeter);
+            }
+
+            if (down is { Y: >= 0 and < GridSize } && areas[down.X, down.Y] == id)
+            {
+                perimeter--;
+
+                ComputeAreaPrice(down, id, ref area, ref perimeter);
+            }
         }
     }
 
     public override void RunPart2(bool display = true)
     {
-        var map = ParseMap();
-        var canvas = DrawMap(map);
 
-        // Test all possible solutions
-        var minimumPathLength = FindNearestStart(map);
-
-        // Draw solution path
-        foreach (var (x, y) in minimumPathLength.path)
-        {
-            canvas.SetPixel(x, y, Color.White);
-        }
-
-        if (display)
-        {
-            AnsiConsole.Write(canvas);
-            AnsiConsole.WriteLine();
-
-            AnsiConsole.MarkupLine($"[green]Minimum path length: [yellow]{minimumPathLength.length}[/][/]");
-        }
     }
 
-    private (int length, List<(int x, int y)> path) ExplorePath(byte[,] map)
+    private byte[,] ParseAreas()
     {
-        var height = map.GetLength(0);
-        var width = map.GetLength(1);
+        var areas = new byte[GridSize, GridSize];
 
-        // Store seen positions with number of steps to reach this position
-        var exploredPositions = new Dictionary<(int x, int y), int>();
-        var toExplore = new Queue<(int x, int y, int elevation, int steps, List<(int x, int y)> path)>();
-        var pathLengths = new List<(int length, List<(int x, int y)> path)>();
+        int y = 0;
 
-        toExplore.Enqueue((_start.x, _start.y, 0, 0, new()));
-
-        // Explore all possible path
-        while (toExplore.Count > 0)
+        foreach (var line in Input.AsSpan().EnumerateLines())
         {
-            var (x, y, previousElevation, steps, path) = toExplore.Dequeue();
+            int x = 0;
 
-            // If we went out of bound
-            if (x < 0 || x >= width || y < 0 || y >= height)
+            foreach (var area in line)
             {
-                continue;
+                areas[x, y] = (byte)(area - 'A');
+
+                x++;
             }
 
-            // If new elevation is too high
-            var newElevation = map[y, x];
-            if (newElevation - previousElevation > 1)
-            {
-                continue;
-            }
-
-            // If new path is not better than old path, just skip
-            if (exploredPositions.TryGetValue((x, y), out var oldSteps))
-            {
-                if (oldSteps <= steps)
-                {
-                    continue;
-                }
-            }
-
-            // Mark this position as explored and store required number of steps to reach it
-            exploredPositions[(x, y)] = steps;
-
-            // Update path
-            var newPath = new List<(int x, int y)>(path) { (x, y) };
-
-            // If we found the end, note that we could end the search here since it's a bfs, there can't be
-            // any shorter path to this point
-            if ((x, y) == _end)
-            {
-                pathLengths.Add((steps, newPath));
-
-                continue;
-            }
-
-            var nextPositions = new (int x, int y)[]
-            {
-                (x + 1, y), (x - 1, y), (x, y + 1), (x, y - 1)
-            };
-
-            foreach (var nextPosition in nextPositions)
-            {
-                toExplore.Enqueue((nextPosition.x, nextPosition.y, newElevation, steps + 1, newPath));
-            }
+            y++;
         }
 
-        return pathLengths.MinBy(p => p.length);
+        return areas;
     }
 
-    private (int length, List<(int x, int y)> path) FindNearestStart(byte[,] map)
+    private readonly record struct Point(int X, int Y)
+        : IAdditionOperators<Point, Point, Point>,
+            ISubtractionOperators<Point, Point, Point>,
+            IMultiplyOperators<Point, int, Point>
     {
-        var height = map.GetLength(0);
-        var width = map.GetLength(1);
-
-        // Store seen positions with number of steps to reach this position
-        var exploredPositions = new Dictionary<(int x, int y), int>();
-        var toExplore = new Queue<(int x, int y, int elevation, int steps, List<(int x, int y)> path)>();
-        var pathLengths = new List<(int length, List<(int x, int y)> path)>();
-
-        toExplore.Enqueue((_end.x, _end.y, EndElevation, 0, new()));
-
-        // Explore all possible path
-        while (toExplore.Count > 0)
+        public static Point operator +(Point left, Point right)
         {
-            var (x, y, previousElevation, steps, path) = toExplore.Dequeue();
-
-            // If we went out of bound
-            if (x < 0 || x >= width || y < 0 || y >= height)
-            {
-                continue;
-            }
-
-            // If new elevation is too low, skip
-            var newElevation = map[y, x];
-            if (previousElevation - newElevation > 1)
-            {
-                continue;
-            }
-
-            // If new path is not better than old path, just skip
-            if (exploredPositions.TryGetValue((x, y), out var oldSteps))
-            {
-                if (oldSteps <= steps)
-                {
-                    continue;
-                }
-            }
-
-            // Mark this position as explored and store required number of steps to reach it
-            exploredPositions[(x, y)] = steps;
-
-            // Update path
-            var newPath = new List<(int x, int y)>(path) { (x, y) };
-
-            // If we found a possible start, same as in the 1st part, we could stop here
-            if (newElevation == 0)
-            {
-                pathLengths.Add((steps, newPath));
-
-                continue;
-            }
-
-            var nextPositions = new (int x, int y)[]
-            {
-                (x + 1, y), (x - 1, y), (x, y + 1), (x, y - 1)
-            };
-
-            foreach (var nextPosition in nextPositions)
-            {
-                toExplore.Enqueue((nextPosition.x, nextPosition.y, newElevation, steps + 1, newPath));
-            }
+            return new Point(left.X + right.X, left.Y + right.Y);
         }
 
-        return pathLengths.MinBy(p => p.length);
-    }
-
-    private byte[,] ParseMap()
-    {
-        var lines = Input.ReadAllLines().ToArray();
-        var lineCount = lines.Length;
-        var columnCount = lines[0].Length;
-
-        var map = new byte[lineCount, columnCount];
-
-        for (int i = 0; i < lineCount; i++)
+        public static Point operator -(Point left, Point right)
         {
-            var line = lines[i];
-
-            for (int j = 0; j < columnCount; j++)
-            {
-                var elevation = line[j];
-
-                map[i, j] = elevation switch
-                {
-                    'S' => 0,
-                    'E' => EndElevation,
-                    _ => (byte) (elevation - 'a')
-                };
-
-                // Store the end
-                if (elevation == 'E')
-                {
-                    _end = (j, i);
-                }
-
-                // Store the start
-                if (elevation == 'S')
-                {
-                    _start = (j, i);
-                }
-            }
+            return new Point(left.X - right.X, left.Y - right.Y);
         }
 
-        return map;
-    }
-
-    private Canvas DrawMap(byte[,] map)
-    {
-        var height = map.GetLength(0);
-        var width = map.GetLength(1);
-
-        var canvas = new Canvas(width, height);
-
-        for (int x = 0; x < width; x++)
+        public static Point operator *(Point left, int right)
         {
-            for (int y = 0; y < height; y++)
-            {
-                canvas.SetPixel(x, y, _colorMap[map[y, x]]);
-            }
+            return new Point(left.X * right, left.Y * right);
         }
 
-        return canvas;
+        public static Point operator *(int left, Point right)
+        {
+            return new Point(right.X * left, right.Y * left);
+        }
+
+        public static implicit operator Point((int X, int Y) point)
+            => new(point.X, point.Y);
     }
-
-    #region Input
-
-    public const string Input =
-    """
-    abccccccaaccaaccccaaaaacccccaaaaccccccccccccccccccccccccccccccccaaaaaaaaaaaaaaaaaaaccccccccccccccccaaaccccccccccccaacccccccccccccccccccccccccccccccccccccccccaaaa
-    abaaaaccaaaaaccccaaaaaccccccaaaaccccccccccccccccccccaaacccccccccccaaaaaaaaaaaaaaaaaaccccccccccccccccaaaaccccccaaacaaccccccccccccccccccccccccccccccccccccccccaaaaa
-    abaaacccaaaaaaaacaaaaaacccccaaaaccccccccccccccccccccaaaaacccccccccaaaaaaaaaaaaaaaaacccccccccaaccccaaaaaacccccccaaaaaccccaaccccccccccccccacccccccccccccccccccaaaaa
-    abaaacccccaaaaaccccaaaaccccccaaacccccccccccccccccccaaaaaccccccccccaaaaaacacaaaaaacccccccccccaaccccaaaaacccccccccaaaaaaccaaaaaaccccccccccaaaccccacccccccccccaaaaaa
-    abaacccccaaaaaccccaacccccccccccccccaaaaacccccccccccaaaaacccccccccaaaaaaaaccaaaaaaacccccccaaaaaaaaccaaaaacccccccaaaaaaaccaaaaacccccccccccaaacccaaaccccccccccccccaa
-    abaaacccaaacaacccccccccccccccccccccaaaaaccccccccccccaaaaacccccccaaaaaaaaaccaaccaaacccccccaaaaaaaaccaacccccccccaaaaaaccaaaaaaccccccccccccaaaacaaaaccccccccccccccaa
-    abaaacccccccaaccccccccccccccccccccaaaaaaccccccccccccaaccccccaacccaaaccaaaaccccccaacccccccccaaaacccccccccccccccaacaaaccaaaaaaaccccccccccccajjjjjjjcccccccccccccccc
-    abcaacccccccccccccccccccccccccccccaaaaaaccccccccccccccccccccaaaaccccccaaaaccccccccccccccaacaaaaaccccccccccccccccccaaccccaaaaaacccccccccccjjjjjjjjjcccccaaaccccccc
-    abccccccccccccccccccccccccccccccccaaaaaaccaaccccccccccccccaaaaaacccccccaaacccccccccccaacaaaaaaaaccccccccccccccccccccccccaaccaaccccccccaiijjjjojjjjcccccaaacaccccc
-    abcccccccccccccccccccccccaaacccccccaaacacaaacccccccccccccccaaaaccccaaccccccccccccccccaaaaaaacccaccccccccccccccccccccccccaacccccccccccaiiijjooooojjkccaaaaaaaacccc
-    abccccccccccccccccccccccaaaaccccccccccaaaaaccccccccccccccccaaaaacccaaaaaccccccccccccccaaaaaacccccccccccccccccccccccccccccccccccccciiiiiiiioooooookkkcaaaaaaaacccc
-    abccccccccccccccccccccccaaaaccccccccccaaaaaaaacccccccccccccaacaaccaaaaacccccccaaacccaaaaaaaaccccccccccccccccccccccccccccccccccchiiiiiiiiooooouoookkkccaaaaaaccccc
-    abcccccccccaaccccccccccccaaaccccccccccccaaaaacccccccccccccccccccccaaaaaccccccaaaacccaaaaacaacccccccccccccaacaacccccccccccccccchhhiiiinnnooouuuuoookkkccaaaaaccccc
-    abcccccccccaaacccccccccccccccccccccccccaaaaacccccccccccccccccccccccaaaaacccccaaaaccccccaaccccccccccccccccaaaaacccccccccccccccchhhnnnnnnnnouuuuuuppkkkkaaaaaaccccc
-    abccccccaaaaaaaacccaaccccccccccccccccccaacaaccaacaaccccccccccccccccaacccccccccaaaccccccaacccccccccccccccaaaaacccccccccccccccchhhnnnnnnnnntuuxuuupppkkkkkacccccccc
-    abccccccaaaaaaaacacaaaacccccccccccccccccccaaccaaaaacccccccccccccccccccccccccccccccccccccccccccccccccccccaaaaaacccccccaacccccchhhnnnnttttttuxxxuuppppkkkkkcccccccc
-    abcccccccaaaaaaccaaaaaaccccccccccaaccccccccccaaaaaccccccccccccccccccccccccaaacccccccccccccccccccccccccccccaaaaccaaccaaacccaaahhhnnntttttttuxxxxuupppppllllccccccc
-    abcccccccaaaaaacccaaaacccccccccaaaaaaccccccccaaaaaacccccccccccccccccccccccaaacccccccccccccccccccccccccccccacccccaaaaaaacaaaaahhhppntttxxxxxxxxuuuuvpppplllccccccc
-    abcccccccaaaaaacccaaaacccccccccaaaaaacccccaaaaaaaaaccccccccccccccccccccaaaaaaaacccccccccccccccccccccaaaccccccaacaaaaaaccaaaaahhhpppttxxxxxxxxyuuvvvvvppplllcccccc
-    abcccccccaaccaacccaacaccaaaaccccaaaaacccccaaaaaaaaaccccccccccccccccccccaaaaaaaacccccccccccccccccccccaaacaaaaaaaccaaaaaaaaaaaaahhppptttxxxxxxyyyyyyvvvppplllcccccc
-    SbccccccccccccccccccccccaaaacccaaaaacccccccaaaaaaaaacaaaccccccccaacccccccaaaaaccccccccaaaaacccccccccaaaaaaaaaaaaaaaaaaaaaaaaacgggpppttxxxxEzzyyyyyvvvqqqlllcccccc
-    abccccccccccccccccccccccaaaacccaaaaacccccccaaaaaaaaccaaaccccccccaaacaaccaaaaaaccccccccaaaaacccccccaaaaaaaaaaaaaaaaaaaaaaaaaaacgggpppsssxxxyyyyyyvvvvvqqlllccccccc
-    abcccaaaccccccccccccccccaaaccccccccccccccccaaaaaaaaaaaaaccccccccaaaaaaccaaaaaacccccccaaaaaacccaaaccaaaaaccaaaaaaaaaaaacccccccccgggppssswwyyyyyyvvvvqqqqlllccccccc
-    abcaaaaaccccccccccccccccccccccccccccccccccaaaaaaaaaaaaacccccccaaaaaaacccaccaaacccccccaaaaaacccaaacccaaaaaaaaaaaccccaaacccaaaaacgggppsswwwyyyyyyvvqqqqqlllcccccccc
-    abcaaaaaaccccccccccccccccccccccccccccccccccaaccaaaaaaaaaaaccccaaaaaaacccccccccccccccccaaaaacccaaacaaaacaaaaaaaaccccaaacccaaaaacggpppsswwwywwyyyvvqqqmmmlccccccccc
-    abcaaaaaacccccccaacaaccccccccccccccccccccccccccaaaaaaaaaaaccccccaaaaacccccccccccccccccaaaccaaaaaaaaaaacccccccaacccccccccaaaaaacggpppsswwwwwwwwyvvqqqmmmcccccccccc
-    abcaaaaaccccccccaaaaaccccccccccccccccccccccccccccaaaaaaaacccccccaacaaacccccccccccccccccccccaaaaaaaaaccccccccccccccccccccaaaaaagggoossswwwwrrwwwvvqqmmmccccccccccc
-    abcaaaaacccccccaaaaaccccccccccccccccccccccccccccaaaaaaacccccccccaaccccccccccccccccccccccccccaaaaaaacccccccccccaaaccccccccaaaaagggooosssssrrrrwwwvqqmmmcccaacccccc
-    abcccccccccccccaaaaaaccccccccccccccccccccaacccccccccaaaccccccccccccccccccccccccccccccccccccccaaaaaaccccccccccccaaaaccccccaaaccgggooosssssrrrrrwwrrqmmmcccaacccccc
-    abcccccccccccccccaaaacccccccccccccccccccaaaacccccccacaaacccccccccccccccccccccccccccccccccccccaaaaaaacccccccccaaaaaacccccccccccgffoooooosoonrrrrrrrrmmmccaaaaacccc
-    abcccccccccccccccaccccccccccccccccccccccaaaacccccccaaaaacccccccccccccccccccccccccccccccccccccaaacaaacccccccccaaaaacccccccccccccfffoooooooonnnrrrrrmmmddcaaaaacccc
-    abccccccccccccccccccccccccccccccccccccccaaaaccccccccaaaaacccccccccccccccccccccccccaaaccccccccaacccccccccccccccaaaaaccccccccccccffffoooooonnnnnnrnnmmmdddaaaaacccc
-    abcccccccccccccccccccccccccccccccccccccccccccccccccaaaaaacccccccccccccccccaaaaaccaaaacccccccccccccccccccccccccaacccccccccccccccfffffffffeeeennnnnnmmdddaaaacccccc
-    abcccccccaaaccccccccaccccccccccccccccccccccccccccccaaaaccccccccccccaaaccccaaaaaccaaaaccccccccccccccccccccccccccccccccccccccccccccfffffffeeeeennnnnmddddaaaaaccccc
-    abcccaaccaaacccccaaaacccccaacccccccccccccccccccccccccaaacccccccccccaaacccaaaaaacccaaaccccccccccccccccccccccccccccccccccccccccccccccffffeeeeeeeedddddddcccaacccccc
-    abcccaaaaaaacccccaaaaaaccaaacccccccccccccccccccccccccccacccccccccccaaaaccaaaaaaccccccccccccccccccccccccccaacccccccccaaaccccccccccccccaaaaaaeeeeedddddcccccccccccc
-    abcccaaaaaacccccccaaaacccaaacaaaccccaaaacccccccccaaacaaaccccccaacccaaaacaaaaaaacccccccccccccccccccccccccaaaccccccccaaaacccccccccccccccccccaaaaeeddddccccccccccccc
-    abccccaaaaaaaacccaaaaaaaaaaaaaaaccccaaaacccccccccaaaaaaacccccaaacccaaaaaaaaaacccccccccccccccccccccccaaacaaaccccccccaaaaccccccccccccccccccccaaaccccccccccccccaaaca
-    abcccaaaaaaaaacccaacaaaaaaaaaaacccccaaaaccccccccccaaaaaacaaacaaacaaaaaaaaaacccccccccccccccaaacccccccaaaaaaaaaaccccccaaaccccccccccccccccccccaacccccccccccccccaaaaa
-    abcccaaaaaaaacccccccccccaaaaaacccccccaacccccccccccaaaaaaaaaaaaaaaaaaaaaaaaccccccccccccccccaaaacccccccaaaaaaaaacccccccccccccccccccccccccccccaaacccccccccccccccaaaa
-    abccaaaaaaacccccccccccccaaaaaaacccccccccccccccccaaaaaaaaaaaaaaaaaaaaaaaaaaacccccccccccccccaaaacccccccaaaaaaaacccccccccccccccccccccccccccccccccccccccccccccccaaaaa
-    """;
-
-    #endregion
 }

Days/Day13.cs

@@ -1,731 +1,87 @@
-using Spectre.Console;
+using System.Collections.Frozen;
+using System.Numerics;
+using System.Text;
+using Spectre.Console;
 
 namespace AdventOfCode.Days;
 
-public abstract class PacketElement : IEquatable<PacketElement>, IComparable<PacketElement>
-{
-    public override bool Equals(object? obj)
-    {
-        if (ReferenceEquals(null, obj)) return false;
-        if (ReferenceEquals(this, obj)) return true;
-        return obj.GetType() == GetType() && Equals((PacketElement) obj);
-    }
-
-    public override int GetHashCode()
-    {
-        throw new NotImplementedException();
-    }
-
-    public static bool operator ==(PacketElement left, PacketElement right)
-    {
-        return left.Equals(right);
-    }
-
-    public static bool operator !=(PacketElement left, PacketElement right)
-    {
-        return !(left == right);
-    }
-
-    public static bool operator <(PacketElement left, PacketElement right)
-    {
-        return left.CompareTo(right) < 0;
-    }
-
-
-    public static bool operator >(PacketElement left, PacketElement right)
-    {
-        return left.CompareTo(right) > 0;
-    }
-
-    public bool Equals(PacketElement? other)
-    {
-        return other is not null && (this, other) switch
-        {
-            (IntegerElement leftInteger, IntegerElement rightInteger) => leftInteger.Value == rightInteger.Value,
-            (ListElement leftList, IntegerElement rightInteger) => leftList.Elements is [var x] && x == rightInteger,
-            (IntegerElement leftInteger, ListElement rightList) => rightList.Elements is [var x] && x == leftInteger,
-            (ListElement leftList, ListElement rightList) => leftList == rightList,
-            _ => throw new ArgumentException("Can only compare lists and integers")
-        };
-    }
-
-    public int CompareTo(PacketElement? other)
-    {
-        return (this, other) switch
-        {
-            (IntegerElement leftInteger, IntegerElement rightInteger) => leftInteger.Value.CompareTo(rightInteger.Value),
-            (ListElement leftList, IntegerElement rightInteger) => leftList.CompareTo(new ListElement(new PacketElement[] { rightInteger })),
-            (IntegerElement leftInteger, ListElement rightList) => -rightList.CompareTo(new ListElement(new PacketElement[] { leftInteger })),
-            (ListElement leftList, ListElement rightList) => leftList.CompareTo(rightList),
-            _ => throw new ArgumentException("Can only compare lists and integers")
-        };
-    }
-}
-
-public class ListElement : PacketElement, IEquatable<ListElement>, IComparable<ListElement>
-{
-    public override bool Equals(object? obj)
-    {
-        if (ReferenceEquals(null, obj)) return false;
-        if (ReferenceEquals(this, obj)) return true;
-        return obj.GetType() == GetType() && Equals((ListElement) obj);
-    }
-
-    public override int GetHashCode()
-    {
-        return HashCode.Combine(base.GetHashCode(), Elements);
-    }
-
-    public IList<PacketElement> Elements { get; }
-    public int Count => Elements.Count;
-
-    public ListElement(IList<PacketElement> elements)
-    {
-        Elements = elements;
-    }
-
-    public static bool operator ==(ListElement left, ListElement right)
-    {
-        return left.Equals(right);
-    }
-
-    public static bool operator !=(ListElement left, ListElement right)
-    {
-        return !(left == right);
-    }
-
-    public static bool operator <(ListElement left, ListElement right)
-    {
-        return left.CompareTo(right) < 0;
-    }
-
-    public static bool operator >(ListElement left, ListElement right)
-    {
-        return left.CompareTo(right) > 0;
-    }
-
-    public bool Equals(ListElement? other)
-    {
-        return other is not null && Count == other.Count && Elements.Zip(other.Elements).All(t => t.First == t.Second);
-    }
-
-    public int CompareTo(ListElement? other)
-    {
-        if (other is null)
-        {
-            throw new ArgumentException("Other can't be null");
-        }
-
-        // Compare elements by elements
-        for (int i = 0; i < other.Count; i++)
-        {
-            // If there's no element in this list anymore, it's that it's lower
-            if (i >= Count)
-            {
-                return -1;
-            }
-
-            // If the two next values aren't equal, return the result, else continue
-            var compare = Elements[i].CompareTo(other.Elements[i]);
-
-            if (compare != 0)
-            {
-                return compare;
-            }
-        }
-
-        // If there's still more elements in this list, it means that it's bigger, else they are equal
-        return other.Count != Count ? 1 : 0;
-    }
-}
-
-public class IntegerElement : PacketElement
-{
-    public int Value { get; }
-
-    public IntegerElement(int value)
-    {
-        Value = value;
-    }
-}
-
 public class Day13 : Day
 {
     public override int Number => 13;
-    public override string Name => "Distress Signal";
+    public override string Name => "Claw Contraption";
+
+    private const int MaxButtonPress = 100;
+    private const int ButtonACost = 3;
+    private const int ButtonBCost = 1;
+
     public override void RunPart1(bool display = true)
     {
-        var pairs = ParsePacketPairs();
+        var lines = Input.AsSpan().EnumerateLines();
 
-        var sum = 0;
+        var minimumTokensToWin = 0;
 
-        for (int i = 0; i < pairs.Count; i++)
+        while (lines.MoveNext())
         {
-            var pair = pairs[i];
+            var (aX, aY, bX, bY, goalX, goalY) = ParseMachine(ref lines);
 
-            if (pair.left < pair.right)
+            for (var i = MaxButtonPress; i >= 0; i--)
             {
-                sum += i + 1;
+                var xOffset = bX * i;
+
+                if (xOffset > goalX)
+                {
+                    continue;
+                }
+
+                if ((goalX - xOffset) % aX != 0)
+                {
+                    continue;
+                }
+
+                var timesAPressed = (goalX - xOffset) / aX;
+
+                if (bY * i + aY * timesAPressed != goalY)
+                {
+                    continue;
+                }
+
+                minimumTokensToWin += i * ButtonBCost + timesAPressed * ButtonACost;
+
+                break;
             }
         }
 
         if (display)
         {
-            AnsiConsole.MarkupLine($"[green]Right order pair indices sum: [yellow]{sum}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Minimum tokens to win all prizes: [yellow]{minimumTokensToWin}[/][/]");
         }
     }
 
     public override void RunPart2(bool display = true)
     {
-        var packets = ParsePackets();
 
-        // Add divider packets
-        var firstDivider = new ListElement(new PacketElement[] { new ListElement(new PacketElement[] { new IntegerElement(2) }) });
-        var lastDivider = new ListElement(new PacketElement[] { new ListElement(new PacketElement[] { new IntegerElement(6) }) });
-        packets.Add(firstDivider);
-        packets.Add(lastDivider);
-
-        var orderedPackets = packets.Order().ToList();
-
-        var firstDividerIndex = orderedPackets.IndexOf(firstDivider) + 1;
-        var lastDividerIndex = orderedPackets.IndexOf(lastDivider) + 1;
-
-        if (display)
-        {
-            AnsiConsole.MarkupLine($"[green]Decoder key is: [yellow]{firstDividerIndex * lastDividerIndex}[/][/]");
-        }
     }
-    private static PacketElement ReadElement(ref ReadOnlySpan<char> packet)
+
+    private (int aX, int aY, int bX, int bY, int goalX, int goalY) ParseMachine(ref SpanLineEnumerator lines)
     {
-        // This is an integer
-        if (packet[0] != '[')
-        {
-            return ReadInteger(ref packet);
-        }
+        var lineA = lines.Current;
+        lines.MoveNext();
 
-        // This is a list packet
-        return ReadList(ref packet);
+        var lineB = lines.Current;
+        lines.MoveNext();
+
+        var lineGoal = lines.Current;
+        lines.MoveNext();
+
+        return (
+            int.Parse(lineA[(lineA.IndexOf('+') + 1)..lineA.IndexOf(',')]),
+            int.Parse(lineA[(lineA.LastIndexOf('+') + 1)..]),
+
+            int.Parse(lineB[(lineB.IndexOf('+') + 1)..lineB.IndexOf(',')]),
+            int.Parse(lineB[(lineB.LastIndexOf('+') + 1)..]),
+
+            int.Parse(lineGoal[(lineGoal.IndexOf('=') + 1)..lineGoal.IndexOf(',')]),
+            int.Parse(lineGoal[(lineGoal.LastIndexOf('=') + 1)..])
+        );
     }
-
-    private static ListElement ReadList(ref ReadOnlySpan<char> packet)
-    {
-        var list = new List<PacketElement>();
-
-        while (packet[0] != ']')
-        {
-            // Skip delimiter
-            packet = packet[1..];
-
-            // If it's an empty list
-            if (packet[0] == ']')
-            {
-                break;
-            }
-
-            list.Add(ReadElement(ref packet));
-        }
-
-        // Skip closing bracket
-        packet = packet[1..];
-
-        return new ListElement(list);
-    }
-
-    private static IntegerElement ReadInteger(ref ReadOnlySpan<char> packet)
-    {
-        var intEnd = packet.IndexOfAny(',', ']');
-        var element = new IntegerElement(int.Parse(packet[..intEnd]));
-
-        packet = packet[intEnd..];
-
-        return element;
-    }
-
-    private static IList<(PacketElement left, PacketElement right)> ParsePacketPairs()
-    {
-
-        var pairs = new List<(PacketElement, PacketElement)>();
-        foreach (var pair in Input.ReplaceLineEndings("\n").Split("\n\n"))
-        {
-            var split = pair.Split('\n');
-
-            var leftSpan = split[0].AsSpan();
-            var rightSpan = split[1].AsSpan();
-
-            pairs.Add((ReadElement(ref leftSpan), ReadElement(ref rightSpan)));
-        }
-
-        return pairs;
-    }
-
-    private static IList<PacketElement> ParsePackets()
-    {
-        var packets = new List<PacketElement>();
-
-        foreach (var packet in Input.ReadAllLines().Where(l => !string.IsNullOrWhiteSpace(l)))
-        {
-            var packetSpan = packet.AsSpan();
-
-            packets.Add(ReadElement(ref packetSpan));
-        }
-
-        return packets;
-    }
-
-    #region Input
-
-    public const string Input =
-    """
-    [[5,[[3,0]],[0,[8,6,9],2,9],[5,6,[2,8,3],[0]],[6,2,[2,6,8],10]]]
-    [[6,4,[2,[2,2],8,[3,7,0,6,2]]],[4,10]]
-
-    [[[6,[10,9,7]],9,[9,[9,0,8,3],[0],3],[8,1]],[2,10,9],[[0,6,[4]],2,[2,3,[6,7,0],[1,4,2]],[[3,7,2],[],0],9],[],[[]]]
-    [[1,[1,10]]]
-
-    [[2,3,[]],[7,[[6,9,9,1,6],[0,3],10,3,[5]],[[]],[9,[],[1,0,0,1,1]]],[7,[1,[3,0],[7,10,8,5,0],2,1],4,7,3],[[5],6,4],[9,3,[4,[0,7,9,9],5,[2,0],[]],[6,[],[4,9]]]]
-    [[2,[[3,4,7],[7,2,2,6],[8,9,7,7,6],[7,8,1,6,1],[]],[],8]]
-
-    [[4,[[9,8,1],2],10,6,[[],[],7]]]
-    [[9,4,10],[0,[1,[10,4,6],[1],8],[[6,2,7,2,4],[9,3,5,6],[0,3,7],10],3],[[[5,4],2,10],2,9,4,[[6,7,2,3],[6]]],[],[]]
-
-    [[0,1],[[7,[10,0,8,1],1,4]],[]]
-    [[1,3,2,3],[1,[[],7,[6,5,8,7,9],[0,2]],[8],5,[]],[[7,8,[],[8,9,4]],[2]]]
-
-    [[7,[[6]],[4,9]]]
-    [[10],[],[[10,[10,10,5,2,1],[10],5],[4,4],[[2,1],[9]],6],[6,8]]
-
-    [[[[],[2,3,7],4],0],[[[6,5,10,2,6],10,[2,7],5,5],7,8,[0]],[[10,1,3,3,[7]],0],[]]
-    [[[[6,2,2,8],[7,4,9,4],3,[0]],7,10]]
-
-    [[6,5,5,1],[8],[]]
-    [[1,[]],[10],[10,[8,[4]],6,1],[5]]
-
-    [[[[1,1,2,4],[7,8,8,7],5,[9,1,7,0,8],[2,10,10,4]],10,[7,[6,10],[6,10,6,9],[0,8,10],7]],[8,[[],[],[1,3,0,5,10],[7,0,7]],1],[]]
-    [[6,3,[],5],[]]
-
-    [[[3],[2,[],[1,10,5,5],[1,0,3,3,1]]]]
-    [[[6,5,[4]]],[5,10,5,3],[6],[10]]
-
-    [[[[],[5,0,8,5,4],[2],0,[]],7,6,10,[7,1,10,9]],[]]
-    [[[8,[1,2,3]]],[8],[6,9,[3,1,1,[10,10,3,10,0]],3,0],[[[8,7]]]]
-
-    [[0,[[0],5,[6,3,3],[10,3,10,9]],4]]
-    [[],[5],[8],[[[10,8,10,5,3],[3,7,10,9,8],0],[[],[]]]]
-
-    [[],[10,[7,3,[6],7],[9,[3],[8],7,[1]],10],[6,9,[9,3],[[4,8,1],[10,1,4,7],7],10],[[],[3]]]
-    [[[6],5,6,10,6],[[]],[1,[6,10],8,3],[1]]
-
-    [[1,3],[10,[2],8,1,[6,6,[5],5,[2]]],[[4]],[],[]]
-    [[[],[1,0,[8],8,[0,3,6]],1],[[[6,1],8,3,1],1,[6,[6,9,3,8,7]],10,[5,[4]]]]
-
-    [[9,[6,2,[],[3,0,2,7]],0],[[[5,4,0],0,[2],[7,3,2,5,1]],9,3]]
-    [[2,[7,[5,2,4],8,5,[3,0,4,5,4]],0,8]]
-
-    [[8,6,3,[[10,1,1,7]],8]]
-    [[[9,2,5],10,5]]
-
-    [[],[6],[[[3,6,3,9]],[[2,0],7,1,[10,10,4,4,10]]]]
-    [[4,[[6,8,4,9,2],[],5,[10,1]],1,6],[[[4,2,5],4]],[[3,6]],[7,8,[[5,8,9,10],1,[6,8],1,7]]]
-
-    [[[[],10,7],[],[1,[]],8,[9,0]],[0,[[6],3,1,[0,7,5]],[[7,6,3,9,3],4,4],[],0],[],[9,2,[9,1,[0,9,4,6],[9,2],10],9]]
-    [[],[2,5,6,5,8]]
-
-    [[[[4,4],5,[7],3,[8,8,4]],2],[]]
-    [[[[6,5,4,7,1],[0,9,9]],[[7,3,7,6,10],3,[6,4,9,4]],[1,[],[]]],[[7,5,[2,4,1,1]],2,4],[],[[[4,7],[1,7,9],5,[]],4,[[7,5,1,9,10],2,5,[1,2,0,9,9]]],[9,[]]]
-
-    [[7,[[8,10,9,4,5],[1,3]],1],[[[1,1],2],[[3]],[[7,9,6,6,8],4,[5]],7],[3],[[9,[3,9],[3,1,0,9,2]],4,5,9,[[1]]]]
-    [[[4,[9],5],[[2],8,[5,7,0,0],0,9],[[2,1],[],7,[7,1],2],4,7],[[[4,7,0,10,2],[5,5,0,3,6],[10,6,3,3],4,8],2,[[1]],9,9]]
-
-    [[[[6,2,4,0]],[],[[8,3,1,5,5],1,7,4,2],5,1]]
-    [[[],0],[],[4,[[1,6],2,[8,4,1,3,10]],[5,0,[10,1,0]],8,[2,[10,8,4],[6,2,7,10,10],[8,2,4,4],[]]],[[],6],[[4,5,[2],[10,2,2,1],[4,6,5,10]],[5,[],9,[1]],[]]]
-
-    [[9]]
-    [[[],8],[7,[6,4]],[5]]
-
-    [[],[[3,5,[1],3,[3]],[5],6,[[7,2,6,9],[1,0,0,1]]],[[[5,5,2,0,10],10,7,8,7],5,7,7,[[],1,[6]]],[[]]]
-    [[[5,8,10,[9,1,3,2,4],[6,7,0,7,6]],3,[[7],3,9,4,[9]]]]
-
-    [[3,1,4,[[6]],[[4,6],1,[4]]],[0],[3,[],7]]
-    [[7]]
-
-    [[4,[[5]],[10,8,5,0]],[4]]
-    [[7,6,10,[[1],8,0,[10,5,1]]],[[[2,1,6],9,9,[4],9]],[]]
-
-    [[7,0,5,3,1],[],[[0,9,[8,4,9]],[7,[10,9,4,1,7],2,6],10,[],10],[]]
-    [[1,[],[],6,[[],10,3]]]
-
-    [[[[1,6]]],[[[5,3,7],[],[10,9,7,3,3],0,[]],3,10,5],[],[10,[2]]]
-    [[[[1,5],5],[[6],[3,2],9,[2,0,8]],[9,[6,9,4],8,0,6]],[[[8],8,10],0,[],6,[[2,7,8],0,9]],[7,1],[[[0],[9,5,9]],[[2,10]],[]]]
-
-    [[1,7,[[9],8,[1,1,8]]],[[[9,10,2,0,1],10],0,[7,[10,10],10],5],[7,1],[9,[[],[7,10]]],[[2,9,8,[0,0],[10,9,4,1]],[5],[[8,6]]]]
-    [[[[4,7,4],[],6,[5,4]],[],[7,[],[],3],[[9,3,5,1,10],[],[7,2]]],[[6,1],3,[[],[3,2],[],[3],[8,7,3,9]]]]
-
-    [[[2],0],[2,[6,1],6,5],[0,[],[[9],[],[],[10,8,6]],[[9,6,8,2,3],8,1,5,1],[[4],2,[]]],[[10,1,0,6,1],6],[4]]
-    [[1,[[4,10,2],10],[4],6,[[1,0,7],[8,1,9,5,2],6]]]
-
-    [[],[9],[[],[[4,4,1,8],3,5]]]
-    [[[[10,7],6,[]],[[1,3],[8,9,4],8,[],[2,9]],[8,3],10],[7],[8,9,10]]
-
-    [[3,[10,[],4],[[8,3],4,6,[0,6,9,3,6],[8,9,5,9]],[10,[7,1,0,1],[7,1,2,1],[],[]]]]
-    [[7,2]]
-
-    [[8,[],2,0],[[1,[10,7],[0],2,0]],[4,0,[10,[0,5,1],[1],[]],6,[9]]]
-    [[],[6,[[5,1,6,0,5],4],[7,7,[6],8,[2,1]],1,[[3,0]]],[4,10,[[5,10],[4,9,2,1,5],[7,1,5,6]]],[],[1,9,[]]]
-
-    [[[[5,7,1,2],[8],[7,0,9,7,3],[4,2,1],1],8,[4,1,[8,6,1,10],[6,8,3,2,0]],[[3],1,[2]]],[[8,[7,10,1,5,2],[1,1],[1,2]],[[0,4],2,1,[4,6,8]],1,0,3],[10,1,[[0,0,7,8,7],3]],[[4,[4],3,7,[]],3,[10,1,5,[9,6,3]],[[3],[2]],[[],1,10,[2,7]]],[[[9],7,3],8,10]]
-    [[[3]],[[10],2,3]]
-
-    [[[10,4],1,[[4,2,5,8],3,6,[6,10,5,5],5],6],[[7,3,4,5],3,[],[]]]
-    [[[[0,5,8,4],[2,3,9,1],5],[[9,7,1,5,3],6,[4],[9,2]],[]],[10,[4,1,3,2,7]],[2,9,[4,[],8,[8,10,6,10,10]],[5,8,[]]],[10,4,3,3],[]]
-
-    [[],[[[0,9,10,9],9]],[3,[[],[10],4,[4,2,7,8]],0,[[9,10,1,2],9,0],[5]]]
-    [[[[8,2,9,9],9,4,2],[[9,9],0],[9,[4,1],2,[2,5],2]],[]]
-
-    [[],[[0,[4,9]],[4,7,[9],7],[[1,8,9,7,5],[1,4],3,[9,1],4],[4,10,[1],[],[]]],[[5,4,2,10,[9,7,0,4]]],[[[0,10],4],1,5,[[10,7,0,8,9],[6,10,6]],1],[[[5,7],7,5,[]],10,[[6,10,1],[0,8,0]],[],6]]
-    [[7,[[0,5,8,1],[10,10,0,2],[3]],10],[[[0,1,2,7],4],[1,6]],[[[3],[2],[]],6],[[1],[]]]
-
-    [[2],[[],2],[3,9],[],[7,[],1,[[4],8,6,[9,4]],9]]
-    [[7,[[],[2,10,5,10],1,0,[9,2,1]]],[8,[[],0],4,9],[4,[6,3,5],7]]
-
-    [[[[5,5,6,3],[2],8,[]],[[10,1,4,7]],8,6],[[9]]]
-    [[[[8,9],4]],[[[6,0,6],[0,4,2,8,5],2,[5,6,0,9],1],10,4],[]]
-
-    [[[[0],10],[[6,2,10,8]]],[],[[[2],10,3],[],2,10,[10,[]]]]
-    [[[],1,[]],[[],8]]
-
-    [[[2,[10,8,8],[7,1,7,1]],7,1,[]],[6,[[5,10,5,6],2],2,[2,2,[6],10,8]],[[[5,1],[7],1],2,2,10]]
-    [[5,[3,[8,2,10],[3,10,10,10]],2,7]]
-
-    [[],[9,1,4,[1]],[10,[[8,9,2,1],8,6,[],6],8,5],[]]
-    [[[8,5],[[],2,7,[5,0],[10,5,6,8]]]]
-
-    [[[]],[[1,1,5,10,[4,0,10,6,1]],[10,[2,4,7,7],[6,0,8,7]],9,0]]
-    [[[[4,9,6,4,9],2,[5,1,0,1,5]]],[[1,[4,7,5],8,5],[7,[9,4,8,3,7],8,8,[6,8,3,10,2]],[[6],[8],[2,5,8,3],0]],[]]
-
-    [[[4,6,[8,2,10],9],[6],5],[[],0,[1,[4,5,9,1],2]]]
-    [[[],9,[8,6,[4]]]]
-
-    [[6,[]],[4,[],[3,[6,8],[1,6,7,6,6]],6],[],[2,5,5]]
-    [[8,[[5,3],2,2,6,6]],[]]
-
-    [[2,[]],[],[[3,9,10],9]]
-    [[[]]]
-
-    [[[9,[8,6,1,5,0],7,[5,0],[5]],[[]]]]
-    [[7,4,[[6,4,6,5]],[[9,1],[3,0]],4],[0,[[10,4,8]]],[],[],[[6,7],0,[],[]]]
-
-    [[9,3,[8],[10,[10],[7,4]]],[1,[[10,9,4],[7,6],[]],10,5,[]],[[5,7,0],[[3,6,2,8,7]],[[2,6],[],[1,3,9,8,8],10,5],6],[10],[[0,3,7],[[7,1,1,2,1],9]]]
-    [[1,[3,[],[5,3,9,2],[10,5,4,1,7],[1,5,7]]],[[4,[4,0],9,0]],[[1,[9,8,0,6,9]],2,[[7],7,[1],[10]],7],[[0,[],[6],[]]]]
-
-    [[6,1,[10,[4,1,3],1,9]],[]]
-    [[],[],[],[10]]
-
-    [[8,[[10],0,1]]]
-    [[7,2,7,8],[],[6,0,6,4],[[[5,4,5],7],6,[],[]]]
-
-    [[],[[[8,2],7,9],4,2],[7,0],[]]
-    [[0,1,9,7,5],[[[4,1,10]],8,6],[[[8,9,9,10],[6,5],[8,5,3,5]]],[[],8]]
-
-    [[[4,5,6,8],[[5,0,7,10,8],0,[],[7,4,9,9,3]],[]],[],[0,5,[6,8]],[4,[2,[0],[10,1,9,7]],8,3],[]]
-    [[],[]]
-
-    [[[4],4,9],[],[[[3,1],[4,2,5,10,1]],3,[[5,1,0,1,2]],10,[7,[10,5,9,9,9],[2,3,4,10],[2,1],9]]]
-    [[6,[10,[10]],[7,[4,0,4]],[[0,3,10],7]],[[[9,7,2],7,9,[7,4,8,4,9]],2]]
-
-    [[7],[[3,[],[5],[0,6]],[[3,10,5]]]]
-    [[3,[4,7,[9,0,1,1,7]],0],[[8]]]
-
-    [[9,4]]
-    [[9,[[5],2]],[3,3,[4,[9,3,8],0,5],3,7],[9,5,6],[10,9,2,5,1]]
-
-    [[[],[6],8],[[[8],9,[5],1],[6],4,6],[[[]],6],[],[5,[8,8,[10],[5,1,5,9],4],[5,7]]]
-    [[6,[[],2,9,3],7],[4,[[5,9],3,[3,5,5]],7,7],[[],[[2,0,2,9,3],6],[],[[9,6]],2],[5,9,[[],2,[9,10,10],[7,0,4,1],9],9,[[8,2,2]]]]
-
-    [[[7,5,[5,10,1,9],[2,9,9,3]],1,[6,9,[7,9,6]],9,[[5,1,9,10,0]]],[6,8,[]],[],[[2,[2,5,4,9,10],[3,3,3],1],7,[2,9],[4,7,7,[5],[1,2,5,9,8]]],[4,[[],[7]],8,2,1]]
-    [[4,9,3],[6,[],[6,[7,7,9,1,5],[10,4],10],10,3]]
-
-    [[[2,3,[7,5,1,0],5,[10,2,0]]],[7,6],[[[1,0,8,10,2],1]],[0],[6]]
-    [[10,6],[7,10],[[4],[]],[8,[],[[],10,2,10],[[9,3],[6,9,8],[10,2,4,1],8],2]]
-
-    [[[],4],[10,8,[3,9,[]],9],[8,5,[],2],[[8,[10,5,7,2,10],[4,10,7,9],[4,4,5]],[[5,4,6]],[],4]]
-    [[],[0,8,[5,[6,3,0,7],1,9,6],[3,8,[10,3,8,10],4],[8,[10,6,10],10,[],4]]]
-
-    [[[[],6,[5,5],8,[0,5,1]],[7,4,4,[4,1,3,0],8],3,[5,6],8],[9,[4]],[[0,[6,5],1],2,[],[],[2,[8,0,2,10,6],1,[5,8,9,9,4]]],[9,9,[],0]]
-    [[2,[[7,9,8,8,10],[],[4,5]],[[1,10],7,[1,9,1,0]]],[[4,[6,10,1,5],5,6],[],[[4,9,2,3,2],6,[3,0,2,2]],9,[]],[5,[[10,0,10,6,4],1]],[9,[0,[8,2,2],8,[5],4],[]]]
-
-    [[[8],[7,6,10]],[2,5,[[9,9,1,2],[],[],2,4],1],[],[[[7,3,8],1,1,0],[[4,8,7,10,3]],6]]
-    [[],[[9,9,[4,2]],[7,[],9,[3]],[[1,5,0],[9,3,6,1,2]],[[9,9],4,10,1],1]]
-
-    [[],[[0,[9,6],[2,4],9,3],[]],[5],[],[6,[[4,1,0,7,7],[]]]]
-    [[8,10,6,[],4],[[9,7,2,8]],[0,[5,10,[3],[6,5,9],[4,4]],[],6],[[[],2],8,[9,[3],5,[10,1],8],0],[[3]]]
-
-    [[[4,5,[],6,[]],[0,6,[2,4]],10],[[1,[10,6,4,10],[10,4]],1,7,10,7],[],[[],[4,10,[9,0]]],[[6,[10,7,0,7,10]]]]
-    [[3,[3,[4,1,1,10,10],[8,4]],4],[]]
-
-    [[10,[10,4,7]],[7,[1,2,[0,8,6,7]]],[4,6,4]]
-    [[10,10],[[[2,4,4],0],4]]
-
-    [[[[10,4],[1,4,7,1]],2],[[[]]],[3]]
-    [[[[],[5,4,5,9],8,5],[[],0,4,[1,0],6]],[[3],[[],6,7,0,[7,1]],8,7,8]]
-
-    [[[[6,6,5,8],[10,2],[4,10,0]]],[[[1],[4],[0,3,5],[0,1]],[6,[0]],8,1],[1,10,8]]
-    [[[10,3],[6,[2,2],5]],[[10],[],[[7]],[[],3,[0,0,1,8,0],3,[]],2],[],[]]
-
-    [[6],[[],7,[[1,2,0,1]]],[[7]]]
-    [[[[],[],3]],[]]
-
-    [[1,[[5,2,1,10]]]]
-    [[],[6,1,[]],[1,10,5,6,[[1],[10],2,[2],[4,6,10]]],[]]
-
-    [[10,[2,[6,9,4,10,7],[5,8],0],8,10,6],[[[4,10,1]],[[7],[7,4,10,0],[7]],10],[],[[2,[0,2,10,10,1],7,8],[9],[1,[0],[2]],[8,7,[]]],[[]]]
-    [[1,2,3,[3],[]]]
-
-    [[[],1,10,3],[],[5,2,0]]
-    [[10],[5,1,[8,[9,0,9,10]]],[],[[0],[10,10],4,1]]
-
-    [[0,[[0,5],5,2,3]]]
-    [[],[[],5],[],[0]]
-
-    [[3,[9,1,3,[0,9,1,4]]],[],[3,6,[3,10,6]]]
-    [[9,[[],[7,6],[9],1,10],7,[[4,0],[7],[1]],[1,1,3,[4,5,3,10],1]],[7,4,[[2,9,1,9,3],5,[4]],[8],8]]
-
-    [[[[4,5,7],[0],6,[6,7]],8,4]]
-    [[4,3,[[7,4,6],0,2]],[3,3,8,[[5,5,1,8],[8,2,3],7,3,10],7]]
-
-    [[[[7],3,7],0,7,2],[7,[[4,6,8,2,4]],[[6,6,5],[4,4,5,6,6]],[],5],[10,9],[]]
-    [[2,[[6,2,7,5,7],5,1,3],8],[5,[8,[5,9,8],[],[7,5,3],[4,9,0,2]]]]
-
-    [[[2]],[3,[0]],[9,10,2,[],[[7,0,8],4]]]
-    [[[6,[],7],6,5,9,7],[9,[5,[10,1]],[6],3],[0],[4,4,9,7,[3,6,3,8]]]
-
-    [[6,0]]
-    [[4],[[[4,6],[4,10,3],2,[]],3]]
-
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-
-    [[[5,[8,5]],[9,2]],[[[4,9],[3,1],[2,7,5],[2,9,2]],0],[[2,10,2,[],[4,4,4]]],[[7,[1,2,5],[],9],[8,3,[3,8,0,1,10],0,5],1,7],[[[8,0,6,2],[],4,[10]],3,[],4,8]]
-    [[[[9,8,4,2,4],[0,2,0],5],[7,[4,7,10],[]],[[4,0],2],[8,[2,0,10,4],[7,6]]],[],[1,[[1,4,9,8,6],4]]]
-    """;
-
-    #endregion
 }

Days/Day14.cs

@@ -1,582 +1,151 @@
-using System.Drawing;
+using System.Collections.Frozen;
+using System.Numerics;
+using System.Text;
 using Spectre.Console;
-using Color = Spectre.Console.Color;
 
 namespace AdventOfCode.Days;
 
-public enum CellType
-{
-    Air = 0,
-    Rock,
-    Sand
-}
-
-public class MapPath
-{
-    public IEnumerable<Point> Points => _points;
-
-    private readonly IList<Point> _points;
-
-    public MapPath()
-    {
-        _points = new List<Point>();
-    }
-
-    public MapPath(IEnumerable<Point> points)
-    {
-        _points = new List<Point>(points);
-    }
-
-    public void AddPoint(Point point)
-    {
-        _points.Add(point);
-    }
-
-    public void DrawPath(CellType[,] map, int xOffset, int yOffset)
-    {
-        if (!_points.Any())
-        {
-            return;
-        }
-
-        // Draw each point
-        var previousPoint = _points.First();
-
-        foreach (var point in _points.Skip(1))
-        {
-            // Draw horizontally
-            if (previousPoint.X != point.X)
-            {
-                var xStart = Math.Min(previousPoint.X, point.X);
-                var xEnd = Math.Max(previousPoint.X, point.X);
-
-                for (int x = xStart; x <= xEnd; x++)
-                {
-                    map[x + xOffset, point.Y + yOffset] = CellType.Rock;
-                }
-            }
-            // Draw vertically
-            else
-            {
-                var yStart = Math.Min(previousPoint.Y, point.Y);
-                var yEnd = Math.Max(previousPoint.Y, point.Y);
-
-                for (int y = yStart; y <= yEnd; y++)
-                {
-                    map[point.X + xOffset, y + yOffset] = CellType.Rock;
-                }
-            }
-
-            // Use current point for next point drawing
-            previousPoint = point;
-        }
-    }
-
-    public void DrawPath(IDictionary<Point, CellType> map)
-    {
-        if (!_points.Any())
-        {
-            return;
-        }
-
-        // Draw each point
-        var previousPoint = _points.First();
-
-        foreach (var point in _points.Skip(1))
-        {
-            // Draw horizontally
-            if (previousPoint.X != point.X)
-            {
-                var xStart = Math.Min(previousPoint.X, point.X);
-                var xEnd = Math.Max(previousPoint.X, point.X);
-
-                for (int x = xStart; x <= xEnd; x++)
-                {
-                    map[point with { X = x }] = CellType.Rock;
-                }
-            }
-            // Draw vertically
-            else
-            {
-                var yStart = Math.Min(previousPoint.Y, point.Y);
-                var yEnd = Math.Max(previousPoint.Y, point.Y);
-
-                for (int y = yStart; y <= yEnd; y++)
-                {
-                    map[point with { Y = y }] = CellType.Rock;
-                }
-            }
-
-            // Use current point for next point drawing
-            previousPoint = point;
-        }
-    }
-}
-
 public class Day14 : Day
 {
     public override int Number => 14;
-    public override string Name => "Regolith Reservoir";
+    public override string Name => "Restroom Redoubt";
 
-    private readonly Point _sandSource = new(500, 0);
-    private Point _offsetSandSource;
+    private const int Height = 103;
+    private const int HeightCenter = Height / 2;
+
+    private const int Width = 101;
+    private const int WidthCenter = Width / 2;
+
+    private const int Iterations = 100;
 
     public override void RunPart1(bool display = true)
     {
-        var map = GenerateMap();
+        var robots = ParseRobots();
 
-        // Draw canvas
-        var canvas = GenerateCanvas(map);
-        canvas.SetPixel(_offsetSandSource.X, _offsetSandSource.Y, Color.IndianRed1);
-
-        // Simulate sand fall
-        int sandBlocksCount = 0;
-        while (GenerateSand(map, canvas, _offsetSandSource))
+        for (var i = 0; i < Iterations; i++)
         {
-            sandBlocksCount++;
+            foreach (var robot in robots)
+            {
+                robot.Position = new Point(
+                    Math.Abs((Width + robot.Position.X + robot.Velocity.X) % Width),
+                    Math.Abs((Height + robot.Position.Y + robot.Velocity.Y) % Height)
+                );
+            }
         }
 
+        // Compute safety factor
+        var safetyFactor =
+            robots.Count(r => r.Position is { X: < WidthCenter, Y: < HeightCenter }) *
+            robots.Count(r => r.Position is { X: > WidthCenter, Y: < HeightCenter }) *
+            robots.Count(r => r.Position is { X: < WidthCenter, Y: > HeightCenter }) *
+            robots.Count(r => r.Position is { X: > WidthCenter, Y: > HeightCenter });
+
         if (display)
         {
-            AnsiConsole.Write(canvas);
-
-            AnsiConsole.MarkupLine($"[green]Total sand blocks: [yellow]{sandBlocksCount}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Safety factor: [yellow]{safetyFactor}[/][/]");
         }
     }
 
     public override void RunPart2(bool display = true)
     {
-        var map = GenerateDictionaryMap();
+        var robots = ParseRobots();
 
-        // Compute ground level
-        var yMax = map.Keys.Max(p => p.Y);
-        var groundLevel = yMax + 2;
+        var canvas = new Canvas(Width, Height);
 
-        // Simulate sand fall
-        int sandBlocksCount = 0;
-        while (GenerateSand(map, _sandSource, groundLevel))
+        for (var i = 0; i < int.MaxValue; i++)
         {
-            sandBlocksCount++;
-        }
+            for (var x = 0; x < Width; x++)
+            {
+                for (var y = 0; y < Height; y++)
+                {
+                    canvas.SetPixel(x, y, Color.Grey23);
+                }
+            }
 
+            foreach (var robot in robots)
+            {
+                robot.Position = new Point(
+                    Math.Abs((Width + robot.Position.X + robot.Velocity.X) % Width),
+                    Math.Abs((Height + robot.Position.Y + robot.Velocity.Y) % Height)
+                );
 
-        if (display)
-        {
-            AnsiConsole.Write(GenerateCanvas(map, _sandSource));
+                canvas.SetPixel(robot.Position.X, robot.Position.Y, Color.Green1);
+            }
 
-            AnsiConsole.MarkupLine($"[green]Total sand blocks: [yellow]{sandBlocksCount}[/][/]");
+            // Display grid
+            if ((i + 1 - 46) % 101 == 0)
+            {
+                AnsiConsole.Write(canvas);
+                AnsiConsole.WriteLine();
+
+                AnsiConsole.Write($"Seconds elapsed: {i + 1}");
+
+                var key = Console.ReadKey(true).Key;
+
+                if (key is ConsoleKey.Enter)
+                {
+                    AnsiConsole.WriteLine();
+                    AnsiConsole.WriteLine();
+                    AnsiConsole.MarkupLine($"[green]Image at instant: [yellow]t={i + 1}s[/][/]");
+
+                    break;
+                }
+
+                AnsiConsole.Clear();
+            }
         }
     }
 
-    private static bool GenerateSand(CellType[,] map, Canvas canvas, in Point sandSource)
+    private List<Robot> ParseRobots()
     {
-        // Stop if source is blocked
-        if (map[sandSource.X, sandSource.Y] == CellType.Sand)
+        var robots = new List<Robot>();
+
+        foreach (var line in Input.AsSpan().EnumerateLines())
         {
-            return false;
+            var positionX = int.Parse(line[(line.IndexOf('=') + 1)..line.IndexOf(',')]);
+            var positionY = int.Parse(line[(line.IndexOf(',') + 1)..line.IndexOf(' ')]);
+
+            var velocityX = int.Parse(line[(line.LastIndexOf('=') + 1)..line.LastIndexOf(',')]);
+            var velocityY = int.Parse(line[(line.LastIndexOf(',') + 1)..]);
+
+            robots.Add(new Robot(new Point(positionX, positionY), new Point(velocityX, velocityY)));
         }
 
-        var width = map.GetLength(0);
-        var height = map.GetLength(1);
-
-        var sandPosition = new Point(sandSource.X, sandSource.Y);
-
-        // Make sand fall till we don't go outbound
-        while (sandPosition.X >= 0 && sandPosition.X < width && sandPosition.Y >= 0 && sandPosition.Y < height)
-        {
-            // Fall outbound below
-            if (sandPosition.Y + 1 >= height)
-            {
-                return false;
-            }
-
-            // Try below
-            if (map[sandPosition.X, sandPosition.Y + 1] == CellType.Air)
-            {
-                sandPosition.Y += 1;
-                continue;
-            }
-
-            // Fall outbound on the left
-            if (sandPosition.X - 1 < 0)
-            {
-                return false;
-            }
-
-            // Try on the left
-            if (map[sandPosition.X - 1, sandPosition.Y + 1] == CellType.Air)
-            {
-                sandPosition.X -= 1;
-                sandPosition.Y += 1;
-
-                continue;
-            }
-
-            // Fall outbound on the right
-            if (sandPosition.X + 1 >= width)
-            {
-                return false;
-            }
-
-            // Lastly try on the right
-            if (map[sandPosition.X + 1, sandPosition.Y + 1] == CellType.Air)
-            {
-                sandPosition.X += 1;
-                sandPosition.Y += 1;
-
-                continue;
-            }
-
-            // Can't go anywhere, stop
-            break;
-        }
-
-        map[sandPosition.X, sandPosition.Y] = CellType.Sand;
-        canvas.SetPixel(sandPosition.X, sandPosition.Y, Color.SandyBrown);
-
-        return true;
+        return robots;
     }
 
-    private static bool GenerateSand(IDictionary<Point, CellType> map, in Point sandSource, int groundY)
+    private class Robot(Point position, Point velocity)
     {
-        // Stop if source is blocked
-        if (map.GetValueOrDefault(sandSource, CellType.Air) == CellType.Sand)
+        public Point Position { get; set; } = position;
+        public Point Velocity { get; } = velocity;
+    }
+
+    private readonly record struct Point(int X, int Y)
+        : IAdditionOperators<Point, Point, Point>,
+            ISubtractionOperators<Point, Point, Point>,
+            IMultiplyOperators<Point, int, Point>
+    {
+        public static Point operator +(Point left, Point right)
         {
-            return false;
+            return new Point(left.X + right.X, left.Y + right.Y);
         }
 
-        var sandPosition = new Point(sandSource.X, sandSource.Y);
-
-        // Make sand fall till we don't go outbound
-        while (true)
+        public static Point operator -(Point left, Point right)
         {
-            // Sand is touching ground, stop here
-            if (sandPosition.Y + 1 >= groundY)
-            {
-                break;
-            }
-
-            // Try below
-            var below = sandPosition with { Y = sandPosition.Y + 1 };
-            if (map.GetValueOrDefault(below, CellType.Air) == CellType.Air)
-            {
-                sandPosition = below;
-                continue;
-            }
-
-            // Try on the left
-            var left = new Point(sandPosition.X - 1, sandPosition.Y + 1);
-            if (map.GetValueOrDefault(left, CellType.Air) == CellType.Air)
-            {
-                sandPosition = left;
-                continue;
-            }
-
-            // Lastly try on the right
-            var right = new Point(sandPosition.X + 1, sandPosition.Y + 1);
-            if (map.GetValueOrDefault(right, CellType.Air) == CellType.Air)
-            {
-                sandPosition = right;
-                continue;
-            }
-
-            // Can't go anywhere, stop
-            break;
+            return new Point(left.X - right.X, left.Y - right.Y);
         }
 
-        map[sandPosition] = CellType.Sand;
-
-        return true;
-    }
-
-    private static Canvas GenerateCanvas(CellType[,] map)
-    {
-        var width = map.GetLength(0);
-        var height = map.GetLength(1);
-
-        var canvas = new Canvas(width, height);
-
-        for (int x = 0; x < width; x++)
+        public static Point operator *(Point left, int right)
         {
-            for (int y = 0; y < height; y++)
-            {
-                canvas.SetPixel(x, y, ColorCellType(map[x, y]));
-            }
+            return new Point(left.X * right, left.Y * right);
         }
 
-        return canvas;
-    }
-
-    private static Canvas GenerateCanvas(IDictionary<Point, CellType> map, in Point sandSource)
-    {
-        // Compute dimensions
-        var xMin = map.Keys.Min(p => p.X);
-        var xMax = map.Keys.Max(p => p.X);
-
-        var yMin = map.Keys.Min(p => p.Y);
-        var yMax = map.Keys.Max(p => p.Y);
-
-        var width = xMax - xMin + 1;
-        var height = yMax - yMin + 1;
-
-        var canvas = new Canvas(width, height);
-
-        // Fill background
-        for (int x = xMin; x <= xMax; x++)
+        public static Point operator *(int left, Point right)
         {
-            for (int y = yMin; y <= yMax; y++)
-            {
-                canvas.SetPixel(x - xMin, y - yMin, Color.Grey23);
-            }
+            return new Point(right.X * left, right.Y * left);
         }
 
-        // Fill canvas
-        foreach (var (point, cellType) in map)
-        {
-            canvas.SetPixel(point.X - xMin, point.Y - yMin, ColorCellType(cellType));
-        }
-
-        canvas.SetPixel(sandSource.X - xMin, sandSource.Y - yMin, Color.IndianRed1);
-
-        return canvas;
+        public static implicit operator Point((int X, int Y) point)
+            => new(point.X, point.Y);
     }
-
-    private CellType[,] GenerateMap()
-    {
-        var paths = Input.ReadAllLines()
-            .Select(line => new MapPath(line.Split(" -> ")
-                .Select(p => p.Split(','))
-                .Select(s => new Point(int.Parse(s[0]), int.Parse(s[1])))))
-            .ToList();
-
-        // Compute xMin, xMax, yMin, yMax
-        int xMin = paths.SelectMany(p => p.Points).Min(p => p.X);
-        int xMax = paths.SelectMany(p => p.Points).Max(p => p.X);
-
-        int yMax = paths.SelectMany(p => p.Points).Max(p => p.Y);
-
-        // Construct 2D map
-        var width = xMax - xMin + 1;
-        var height = yMax + 1;
-        var map = new CellType[width, height];
-
-        // Fill rocks
-        paths.ForEach(p => p.DrawPath(map, -xMin, 0));
-
-        // Compute new sand source
-        _offsetSandSource = _sandSource;
-        _offsetSandSource.Offset(-xMin, 0);
-
-        return map;
-    }
-
-    private static Color ColorCellType(CellType cellType)
-    {
-        return cellType switch
-        {
-            CellType.Air => Color.Grey23,
-            CellType.Rock => Color.LightSlateGrey,
-            CellType.Sand => Color.SandyBrown,
-            _ => throw new Exception("Invalid CellType")
-        };
-    }
-
-    private static IDictionary<Point, CellType> GenerateDictionaryMap()
-    {
-        var paths = Input.ReadAllLines()
-            .Select(line => new MapPath(line.Split(" -> ")
-                .Select(p => p.Split(','))
-                .Select(s => new Point(int.Parse(s[0]), int.Parse(s[1])))))
-            .ToList();
-
-        // Construct 2D map
-        var map = new Dictionary<Point, CellType>();
-
-        // Fill rocks
-        paths.ForEach(p => p.DrawPath(map));
-
-        return map;
-    }
-
-    #region Input
-
-    public const string Input =
-    """
-    521,171 -> 525,171
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    503,109 -> 507,109
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    503,150 -> 503,154 -> 501,154 -> 501,162 -> 513,162 -> 513,154 -> 507,154 -> 507,150
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    503,150 -> 503,154 -> 501,154 -> 501,162 -> 513,162 -> 513,154 -> 507,154 -> 507,150
-    481,79 -> 481,81 -> 478,81 -> 478,89 -> 490,89 -> 490,81 -> 485,81 -> 485,79
-    488,38 -> 493,38
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    482,93 -> 496,93 -> 496,92
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    497,29 -> 502,29
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    501,32 -> 506,32
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    490,16 -> 490,20 -> 484,20 -> 484,26 -> 499,26 -> 499,20 -> 494,20 -> 494,16
-    503,115 -> 507,115
-    524,173 -> 528,173
-    481,79 -> 481,81 -> 478,81 -> 478,89 -> 490,89 -> 490,81 -> 485,81 -> 485,79
-    486,47 -> 490,47
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    490,16 -> 490,20 -> 484,20 -> 484,26 -> 499,26 -> 499,20 -> 494,20 -> 494,16
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    495,50 -> 499,50
-    492,41 -> 496,41
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    522,177 -> 522,178 -> 536,178 -> 536,177
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    503,121 -> 507,121
-    503,150 -> 503,154 -> 501,154 -> 501,162 -> 513,162 -> 513,154 -> 507,154 -> 507,150
-    515,121 -> 519,121
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    498,35 -> 503,35
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    503,171 -> 507,171
-    509,121 -> 513,121
-    494,12 -> 494,13 -> 507,13 -> 507,12
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    500,112 -> 504,112
-    488,124 -> 488,126 -> 485,126 -> 485,129 -> 496,129 -> 496,126 -> 491,126 -> 491,124
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    488,124 -> 488,126 -> 485,126 -> 485,129 -> 496,129 -> 496,126 -> 491,126 -> 491,124
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    512,173 -> 516,173
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    502,38 -> 507,38
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    503,150 -> 503,154 -> 501,154 -> 501,162 -> 513,162 -> 513,154 -> 507,154 -> 507,150
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    506,169 -> 510,169
-    490,16 -> 490,20 -> 484,20 -> 484,26 -> 499,26 -> 499,20 -> 494,20 -> 494,16
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    503,150 -> 503,154 -> 501,154 -> 501,162 -> 513,162 -> 513,154 -> 507,154 -> 507,150
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    488,124 -> 488,126 -> 485,126 -> 485,129 -> 496,129 -> 496,126 -> 491,126 -> 491,124
-    491,121 -> 495,121
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    518,173 -> 522,173
-    501,50 -> 505,50
-    497,115 -> 501,115
-    498,47 -> 502,47
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    518,169 -> 522,169
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    489,44 -> 493,44
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    481,79 -> 481,81 -> 478,81 -> 478,89 -> 490,89 -> 490,81 -> 485,81 -> 485,79
-    509,167 -> 513,167
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    487,133 -> 487,134 -> 501,134
-    481,79 -> 481,81 -> 478,81 -> 478,89 -> 490,89 -> 490,81 -> 485,81 -> 485,79
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    512,118 -> 516,118
-    490,16 -> 490,20 -> 484,20 -> 484,26 -> 499,26 -> 499,20 -> 494,20 -> 494,16
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    512,165 -> 516,165
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    491,35 -> 496,35
-    500,173 -> 504,173
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    490,16 -> 490,20 -> 484,20 -> 484,26 -> 499,26 -> 499,20 -> 494,20 -> 494,16
-    503,150 -> 503,154 -> 501,154 -> 501,162 -> 513,162 -> 513,154 -> 507,154 -> 507,150
-    483,50 -> 487,50
-    481,79 -> 481,81 -> 478,81 -> 478,89 -> 490,89 -> 490,81 -> 485,81 -> 485,79
-    500,118 -> 504,118
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    492,47 -> 496,47
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    495,38 -> 500,38
-    494,12 -> 494,13 -> 507,13 -> 507,12
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    494,118 -> 498,118
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    488,124 -> 488,126 -> 485,126 -> 485,129 -> 496,129 -> 496,126 -> 491,126 -> 491,124
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    488,124 -> 488,126 -> 485,126 -> 485,129 -> 496,129 -> 496,126 -> 491,126 -> 491,124
-    509,115 -> 513,115
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    506,173 -> 510,173
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    481,79 -> 481,81 -> 478,81 -> 478,89 -> 490,89 -> 490,81 -> 485,81 -> 485,79
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    505,35 -> 510,35
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    506,118 -> 510,118
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    503,150 -> 503,154 -> 501,154 -> 501,162 -> 513,162 -> 513,154 -> 507,154 -> 507,150
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    509,171 -> 513,171
-    494,12 -> 494,13 -> 507,13 -> 507,12
-    509,38 -> 514,38
-    488,124 -> 488,126 -> 485,126 -> 485,129 -> 496,129 -> 496,126 -> 491,126 -> 491,124
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    495,44 -> 499,44
-    482,93 -> 496,93 -> 496,92
-    515,171 -> 519,171
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    481,79 -> 481,81 -> 478,81 -> 478,89 -> 490,89 -> 490,81 -> 485,81 -> 485,79
-    522,177 -> 522,178 -> 536,178 -> 536,177
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    497,147 -> 497,137 -> 497,147 -> 499,147 -> 499,146 -> 499,147 -> 501,147 -> 501,142 -> 501,147 -> 503,147 -> 503,144 -> 503,147 -> 505,147 -> 505,140 -> 505,147
-    515,167 -> 519,167
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    506,112 -> 510,112
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    522,177 -> 522,178 -> 536,178 -> 536,177
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    488,124 -> 488,126 -> 485,126 -> 485,129 -> 496,129 -> 496,126 -> 491,126 -> 491,124
-    487,133 -> 487,134 -> 501,134
-    497,121 -> 501,121
-    476,63 -> 476,58 -> 476,63 -> 478,63 -> 478,55 -> 478,63 -> 480,63 -> 480,56 -> 480,63 -> 482,63 -> 482,57 -> 482,63 -> 484,63 -> 484,55 -> 484,63 -> 486,63 -> 486,55 -> 486,63
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    489,50 -> 493,50
-    465,76 -> 465,71 -> 465,76 -> 467,76 -> 467,72 -> 467,76 -> 469,76 -> 469,68 -> 469,76 -> 471,76 -> 471,73 -> 471,76 -> 473,76 -> 473,71 -> 473,76 -> 475,76 -> 475,70 -> 475,76 -> 477,76 -> 477,71 -> 477,76 -> 479,76 -> 479,73 -> 479,76 -> 481,76 -> 481,74 -> 481,76 -> 483,76 -> 483,72 -> 483,76
-    512,169 -> 516,169
-    490,16 -> 490,20 -> 484,20 -> 484,26 -> 499,26 -> 499,20 -> 494,20 -> 494,16
-    494,32 -> 499,32
-    490,16 -> 490,20 -> 484,20 -> 484,26 -> 499,26 -> 499,20 -> 494,20 -> 494,16
-    488,106 -> 488,97 -> 488,106 -> 490,106 -> 490,100 -> 490,106 -> 492,106 -> 492,101 -> 492,106 -> 494,106 -> 494,105 -> 494,106 -> 496,106 -> 496,96 -> 496,106 -> 498,106 -> 498,102 -> 498,106 -> 500,106 -> 500,101 -> 500,106 -> 502,106 -> 502,102 -> 502,106 -> 504,106 -> 504,100 -> 504,106
-    """;
-
-    #endregion
 }

Days/Day15.cs

@@ -1,292 +1,193 @@
-using System.Collections.Concurrent;
-using System.Drawing;
+using System.Collections.Frozen;
+using System.Numerics;
+using System.Text;
 using Spectre.Console;
 
 namespace AdventOfCode.Days;
 
-public class SensorBeaconPair
-{
-    public Point SensorPosition { get; }
-    public Point BeaconPosition { get; }
-
-    public int SensorRange =>
-        Math.Abs(SensorPosition.X - BeaconPosition.X) + Math.Abs(SensorPosition.Y - BeaconPosition.Y);
-
-    public SensorBeaconPair(in Point sensorPosition, in Point beaconPosition)
-    {
-        SensorPosition = sensorPosition;
-        BeaconPosition = beaconPosition;
-    }
-}
-
-public class CoverRange
-{
-    public int Start { get; }
-    public int End { get; }
-    public int Covered => End - Start + 1;
-
-    public CoverRange(int start, int end)
-    {
-        Start = start;
-        End = end;
-    }
-
-    public CoverRange(CoverRange coverRange)
-    {
-        Start = coverRange.Start;
-        End = coverRange.End;
-    }
-
-    public CoverRange Subtract(CoverRange other)
-    {
-        // Overlap on left
-        int newStart;
-        if (other.Start <= Start && other.End >= Start)
-        {
-            newStart = other.End + 1;
-        }
-        else
-        {
-            newStart = Start;
-        }
-
-        // Overlap on right
-        int newEnd;
-        if (other.Start <= End && other.End >= End)
-        {
-            newEnd = other.Start - 1;
-        }
-        else
-        {
-            newEnd = End;
-        }
-
-        return new CoverRange(newStart, newEnd);
-    }
-
-    public static CoverRange operator -(CoverRange left, CoverRange right)
-    {
-        return left.Subtract(right);
-    }
-}
-
 public class Day15 : Day
 {
     public override int Number => 15;
-    public override string Name => "Beacon Exclusion Zone";
+    public override string Name => "Warehouse Woes";
+
+    private const int Size = 50;
+
+    private const char Wall = '#';
+    private const char Box = 'O';
+    private const char Empty = '.';
+
+    private const char InstructionLeft = '<';
+    private const char InstructionRight = '>';
+    private const char InstructionUp = '^';
+    private const char InstructionDown = 'v';
+
     public override void RunPart1(bool display = true)
     {
-        const int targetY = 2_000_000;
+        var (map, position, instructions) = ParseMap();
 
-        // Parse pairs
-        var pairs = ParsePairs();
-
-        var ranges = new List<CoverRange>(pairs.Count);
-
-        // Get which columns are included on line targetY, remove the ones which already contains a beacon
-        var beaconsOnTargetY = new HashSet<int>();
-        foreach (var sensorBeaconPair in pairs)
+        foreach (var instruction in instructions)
         {
-            // Get covered columns on y line
-            var xCenter = sensorBeaconPair.SensorPosition.X;
-            var coveredColumns = sensorBeaconPair.SensorRange - Math.Abs(sensorBeaconPair.SensorPosition.Y - targetY);
-
-            if (coveredColumns > 0)
+            var direction = instruction switch
             {
-                ranges.Add(new CoverRange(xCenter - coveredColumns, xCenter + coveredColumns));
+                InstructionLeft => new Point(-1, 0),
+                InstructionRight => new Point(1, 0),
+                InstructionUp => new Point(0, -1),
+                InstructionDown => new Point(0, 1),
+                _ => throw new ArgumentException($"Invalid instruction: {instruction}")
+            };
 
-                // Check if the beacon is on targetY
-                if (sensorBeaconPair.BeaconPosition.Y == targetY)
+            var destination = position + direction;
+
+            // Destination is free, just move
+            if (map[destination.X, destination.Y] is not (Wall or Box))
+            {
+                position = destination;
+            }
+            // Destination is a box, check if there is a free space further up and move accordingly
+            else if (map[destination.X, destination.Y] is Box)
+            {
+                var pushTarget = destination + direction;
+
+                while (map[pushTarget.X, pushTarget.Y] is Box)
                 {
-                    beaconsOnTargetY.Add(sensorBeaconPair.BeaconPosition.X);
+                    pushTarget += direction;
                 }
-            }
-        }
 
-        // Remove overlapped ranges => inner.Start >= outer.Start && inner.End <= outer.End));
-        ranges.RemoveAll(inner =>
-            ranges.Where(outer => outer != inner).Any(outer => inner.Start >= outer.Start && inner.End <= outer.End));
-
-        // Compute unique number of x columns
-        long totalCovered = 0;
-        for (int i = 0; i < ranges.Count; i++)
-        {
-            var range = ranges[i];
-            var coverRange = range;
-
-            // Add number of covered columns and then subtract common ones
-            for (int j = i + 1; j < ranges.Count; j++)
-            {
-                var exclude = ranges[j];
-
-                coverRange -= exclude;
-            }
-
-            totalCovered += coverRange.Covered;
-        }
-
-        // Remove lines which contains a beacon
-        totalCovered -= beaconsOnTargetY.Count;
-
-        // Print total covered columns on line Y
-        if (display)
-        {
-            AnsiConsole.MarkupLine($"[green]Number of positions that cannot contain a beacon: [yellow]{totalCovered}[/][/]");
-        }
-    }
-
-    public override void RunPart2(bool display = true)
-    {
-        const int xMin = 0;
-        const int xMax = 4_000_000;
-        const int yMin = 0;
-        const int yMax = 4_000_000;
-
-        bool IsOutbound(Point point) => point.X is < xMin or > xMax || point.Y is < yMin or > yMax;
-
-        // Parse pairs
-        var pairs = ParsePairs();
-
-        // Find all points that are just outside a sensor range
-        var possiblePoints = new ConcurrentBag<Point>();
-
-        Parallel.For(0, pairs.Count, i =>
-        {
-            var pair = pairs[i];
-
-            var sensor = pair.SensorPosition;
-            var distance = pair.SensorRange + 1;
-
-            for (int x = -distance; x <= distance; x++)
-            {
-                var y = distance - Math.Abs(x);
-                var positivePoint = new Point(sensor.X + x, sensor.Y + y);
-                var negativePoint = new Point(sensor.X + x, sensor.Y - y);
-
-                // If both points are outbound, just skip
-                var positiveIsOutbound = IsOutbound(positivePoint);
-                var negativeIsOutbound = IsOutbound(negativePoint);
-
-                if (positiveIsOutbound && negativeIsOutbound)
+                // Cannot move anything since there is a wall
+                if (map[pushTarget.X, pushTarget.Y] is Wall)
                 {
                     continue;
                 }
 
-                // Check if this point is just outside at least one other sensor range
-                for (int otherIndex = 0; otherIndex < pairs.Count; otherIndex++)
+                // Move robot and boxes (only need to move first and last box of a chain)
+                position = destination;
+
+                map[destination.X, destination.Y] = Empty;
+                map[pushTarget.X, pushTarget.Y] = Box;
+            }
+            // Else destination is a wall, do nothing
+        }
+
+        var coordinatesSum = 0;
+
+        // Count gps coordinates
+        for (var x = 0; x < Size; x++)
+        {
+            for (var y = 0; y < Size; y++)
+            {
+                if (map[x, y] is Box)
                 {
-                    if (otherIndex == i)
-                    {
-                        continue;
-                    }
+                    coordinatesSum += 100 * y + x;
 
-                    var otherPair = pairs[otherIndex];
-
-                    var otherSensor = otherPair.SensorPosition;
-                    var otherDistance = otherPair.SensorRange + 1;
-
-                    if (!positiveIsOutbound)
-                    {
-                        var distancePositive = Math.Abs(positivePoint.X - otherSensor.X) +
-                                               Math.Abs(positivePoint.Y - otherSensor.Y);
-
-                        if (distancePositive == otherDistance)
-                        {
-                            possiblePoints.Add(positivePoint);
-                        }
-                    }
-
-                    if (!negativeIsOutbound)
-                    {
-                        var distanceNegative = Math.Abs(negativePoint.X - negativePoint.X) +
-                                               Math.Abs(negativePoint.Y - negativePoint.Y);
-
-                        if (distanceNegative == otherDistance)
-                        {
-                            possiblePoints.Add(negativePoint);
-                        }
-                    }
                 }
             }
-        });
-
-        // Keep the only outside detection point
-        var finalPoint = possiblePoints.First(f =>
-            pairs.All(p => Math.Abs(f.X - p.SensorPosition.X) + Math.Abs(f.Y - p.SensorPosition.Y) > p.SensorRange));
-
-        var tuningFrequency = finalPoint.X * (long) 4_000_000 + finalPoint.Y;
+        }
 
         if (display)
         {
-            AnsiConsole.MarkupLine($"[green]Tuning frequency: [yellow]{tuningFrequency}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Sum of boxes GPS coordinates: [yellow]{coordinatesSum}[/][/]");
         }
     }
 
-    private static IList<SensorBeaconPair> ParsePairs()
+    private static void DisplayGrid(char[,] map)
     {
-        var pairs = new List<SensorBeaconPair>();
-
-        foreach (var line in Input.ReadAllLines())
+        for (var y = 0; y < Size; y++)
         {
-            var span = line.AsSpan();
+            for (var x = 0; x < Size; x++)
+            {
+                AnsiConsole.Write(map[x, y]);
+            }
 
-            // Parse sensor position
-            int sensorXStart = span.IndexOf('=') + 1;
-            int sensorXEnd = span.IndexOf(',');
-
-            var sensorX = int.Parse(span[sensorXStart..sensorXEnd]);
-            span = span[sensorXEnd..];
-
-            int sensorYStart = span.IndexOf('=') + 1;
-            int sensorYEnd = span.IndexOf(':');
-
-            var sensorY = int.Parse(span[sensorYStart..sensorYEnd]);
-            span = span[sensorYEnd..];
-
-            // Parse beacon
-            int beaconXStart = span.IndexOf('=') + 1;
-            int beaconXEnd = span.IndexOf(',');
-
-            var beaconX = int.Parse(span[beaconXStart..beaconXEnd]);
-            span = span[beaconXEnd..];
-
-            int beaconYStart = span.IndexOf('=') + 1;
-
-            var beaconY = int.Parse(span[beaconYStart..]);
-
-            pairs.Add(new SensorBeaconPair(new Point(sensorX, sensorY), new Point(beaconX, beaconY)));
+            AnsiConsole.WriteLine();
         }
 
-        return pairs;
+        AnsiConsole.WriteLine();
     }
 
-    #region Input
+    public override void RunPart2(bool display = true)
+    {
 
-    public const string Input =
-    """
-    Sensor at x=1384790, y=3850432: closest beacon is at x=2674241, y=4192888
-    Sensor at x=2825953, y=288046: closest beacon is at x=2154954, y=-342775
-    Sensor at x=3553843, y=2822363: closest beacon is at x=3444765, y=2347460
-    Sensor at x=2495377, y=3130491: closest beacon is at x=2761496, y=2831113
-    Sensor at x=1329263, y=1778185: closest beacon is at x=2729595, y=2000000
-    Sensor at x=2882039, y=2206085: closest beacon is at x=2729595, y=2000000
-    Sensor at x=3903141, y=2510440: closest beacon is at x=4006219, y=3011198
-    Sensor at x=3403454, y=3996578: closest beacon is at x=3754119, y=4475047
-    Sensor at x=3630476, y=1048796: closest beacon is at x=3444765, y=2347460
-    Sensor at x=16252, y=2089672: closest beacon is at x=-276514, y=2995794
-    Sensor at x=428672, y=1150723: closest beacon is at x=-281319, y=668868
-    Sensor at x=2939101, y=3624676: closest beacon is at x=2674241, y=4192888
-    Sensor at x=3166958, y=2890076: closest beacon is at x=2761496, y=2831113
-    Sensor at x=3758241, y=3546895: closest beacon is at x=4006219, y=3011198
-    Sensor at x=218942, y=3011070: closest beacon is at x=-276514, y=2995794
-    Sensor at x=52656, y=3484635: closest beacon is at x=-276514, y=2995794
-    Sensor at x=2057106, y=405314: closest beacon is at x=2154954, y=-342775
-    Sensor at x=1966905, y=2495701: closest beacon is at x=2761496, y=2831113
-    Sensor at x=511976, y=2696731: closest beacon is at x=-276514, y=2995794
-    Sensor at x=3094465, y=2478570: closest beacon is at x=3444765, y=2347460
-    Sensor at x=806671, y=228252: closest beacon is at x=-281319, y=668868
-    Sensor at x=3011731, y=1976307: closest beacon is at x=2729595, y=2000000
-    """;
+    }
 
-    #endregion
+    private (char[,] Map, Point Start, List<char> Instructions) ParseMap()
+    {
+        var readingMap = true;
+
+        var map = new char[Size, Size];
+
+        Point start = default;
+
+        var instructions = new List<char>();
+
+        var y = 0;
+        foreach (var line in Input.AsSpan().EnumerateLines())
+        {
+            if (line.IsWhiteSpace())
+            {
+                readingMap = false;
+
+                continue;
+            }
+
+            if (readingMap)
+            {
+                var x = 0;
+                foreach (var symbol in line)
+                {
+                    map[x, y] = Empty;
+
+                    if (symbol is Wall or Box)
+                    {
+                        map[x, y] = symbol;
+                    }
+                    else if (symbol is '@')
+                    {
+                        start = new Point(x, y);
+                    }
+
+                    x++;
+                }
+
+                y++;
+            }
+            else
+            {
+                foreach (var instruction in line)
+                {
+                    instructions.Add(instruction);
+                }
+            }
+        }
+
+        return (map, start, instructions);
+    }
+
+    private readonly record struct Point(int X, int Y)
+        : IAdditionOperators<Point, Point, Point>,
+            ISubtractionOperators<Point, Point, Point>,
+            IMultiplyOperators<Point, int, Point>
+    {
+        public static Point operator +(Point left, Point right)
+        {
+            return new Point(left.X + right.X, left.Y + right.Y);
+        }
+
+        public static Point operator -(Point left, Point right)
+        {
+            return new Point(left.X - right.X, left.Y - right.Y);
+        }
+
+        public static Point operator *(Point left, int right)
+        {
+            return new Point(left.X * right, left.Y * right);
+        }
+
+        public static Point operator *(int left, Point right)
+        {
+            return new Point(right.X * left, right.Y * left);
+        }
+
+        public static implicit operator Point((int X, int Y) point)
+            => new(point.X, point.Y);
+    }
 }

Days/Day3.cs

@@ -5,365 +5,105 @@ namespace AdventOfCode.Days;
 public class Day3 : Day
 {
     public override int Number => 3;
-    public override string Name => "Rucksack Reorganization";
+    public override string Name => "Mull It Over";
 
     public override void RunPart1(bool display = true)
     {
-        long sum = 0;
+        var result = 0;
 
-        foreach (var line in Input.ReadAllLines())
+        var input = Input.AsSpan();
+        var mulStart = input.IndexOf("mul(");
+
+        while (mulStart != -1)
         {
-            var middle = line.Length / 2;
-            var firstCompartment = line[..middle];
-            var secondCompartment = line[middle..];
+            input = input[(mulStart + 4)..];
 
-            var common = firstCompartment.Intersect(secondCompartment).First();
+            // Start of a mul operation, search the ending parenthesis and make sure it's before the next mul
+            var mulEnd = input.IndexOf(")");
+            var nextMulStart = input.IndexOf("mul(");
 
-            sum += CharToPriority(common);
+            if (mulEnd != -1 && (nextMulStart == -1 || mulEnd < nextMulStart))
+            {
+                var operands = input[..mulEnd];
+                var separator = operands.IndexOf(",");
+
+                if (separator != -1
+                    && int.TryParse(operands[..separator], out var left)
+                    && int.TryParse(operands[(separator + 1)..], out var right))
+                {
+                    result += left * right;
+                }
+            }
+
+            mulStart = nextMulStart;
         }
 
         if (display)
         {
-            AnsiConsole.MarkupLine($"[green]Sum of priorities is: [yellow]{sum}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Result: [yellow]{result}[/][/]");
         }
     }
 
     public override void RunPart2(bool display = true)
     {
-        long sum = 0;
+        var result = 0;
 
-        foreach (var group in Input.ReadAllLines().Chunk(3))
+        var input = Input.AsSpan();
+        var mulStart = input.IndexOf("mul(");
+
+        while (mulStart != -1)
         {
-            var firstBag = group[0];
-            var secondBag = group[1];
-            var thirdBag = group[2];
+            // Check if there is a "don't()" before next mul
+            var dontStart = input.IndexOf("don't()");
 
-            var common = firstBag.Intersect(secondBag).Intersect(thirdBag).First();
+            if (dontStart < mulStart)
+            {
+                // Search for next "do()"
+                input = input[(dontStart + 7)..];
 
-            sum += CharToPriority(common);
+                var doStart = input.IndexOf("do()");
+
+                if (doStart == -1)
+                {
+                    break;
+                }
+
+                input = input[(doStart + 4)..];
+
+                // Update next mult position
+                mulStart = input.IndexOf("mul(");
+
+                if (mulStart == -1)
+                {
+                    break;
+                }
+            }
+
+            input = input[(mulStart + 4)..];
+
+            // Start of a mul operation, search the ending parenthesis and make sure it's before the next mul
+            var mulEnd = input.IndexOf(")");
+            var nextMulStart = input.IndexOf("mul(");
+
+            if (mulEnd != -1 && (nextMulStart == -1 || mulEnd < nextMulStart))
+            {
+                var operands = input[..mulEnd];
+                var separator = operands.IndexOf(",");
+
+                if (separator != -1
+                    && int.TryParse(operands[..separator], out var left)
+                    && int.TryParse(operands[(separator + 1)..], out var right))
+                {
+                    result += left * right;
+                }
+            }
+
+            mulStart = nextMulStart;
         }
 
         if (display)
         {
-            AnsiConsole.MarkupLine($"[green]Sum of priorities is: [yellow]{sum}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Result: [yellow]{result}[/][/]");
         }
     }
-
-    private static int CharToPriority(char c)
-    {
-        if (char.IsLower(c))
-        {
-            return c - 'a' + 1;
-        }
-
-        return c - 'A' + 27;
-    }
-
-    #region Input
-
-    public const string Input =
-    """
-    DsPhSBQQQhqmBDhPDsFwjwsLjlRjlttvjvvtRb
-    rNJMNNbrHrtjHLHjvwtg
-    fNbNzZdrZnMnMPnQShFPDmnqFm
-    QWVCFfQffgQCVZzVVpHsHJBqtpspJFRHqq
-    mwDbmnnGNlNcwNDDNRbnNDlJTpBJBtJGtPTLsBGqTqqsqp
-    MlSdnScRnnmmDjSdNSdCzvggWzrgzjvfvrgVzW
-    gsMljbrjlZlWcWMJrWwTwbmwQbmmLDQQLhwL
-    CdgpzdgpgnfThHfFRwhfRf
-    SptgpSpnCNpVSGNPvPGSddcMWjMrjqBsJcWqMcBWcVlZ
-    JcJLQQFWhQJPJpWcwjHvMQvnnlMvzBHd
-    tCtGZrmVRmVGTVTtCfRTCHHNNvdNzmdMvMlNzvwdvw
-    CTGGRftfSGtGTGDLbFchSgSWWWcM
-    QcMFQrvrQbvtczbVbjbMzZzRpqmDDmqqnNzCDCDC
-    SHHfPJssGLPSdHThLhHdRmqNmNssnNmNCNnpjmsn
-    LhLJfTdLJwfgPTdfGccrtjcMrccwvcrrFr
-    jFLLLqDGjbtqLCChpMMhMBvpwMTmffpZ
-    ZnJHRncHHgnrsrZffTdMdMBfmMvfvR
-    NWWPnZrVHrZPCDDQtzDCPLCq
-    jpFjvBZhDFHZdwcmslcslBLLNl
-    dVtTVVCzzfrrMPNLLcnVcPLRns
-    CrzWzTqdWtGCzJtbJCrMjjDFHZQjZSpvFGFgHhHp
-    JjJqMctnhtDZDQtf
-    TrFFlrrCCHPwHwlPHFPzDhsffQQDsVfWwVJQJB
-    HHHGdFlHldTpCCFFlLHdCRJccMnqvqMgnNjjMjjvLMLcSv
-    cMfFcMFcrqgJLFZdrTDdthPGsGmtGs
-    WwjNwnjjBQzVVQHwRDnmtPGhPPsPnnTGld
-    bWHBjWVzpbRzbmScqgZMFcqf
-    RJjPTBJhTNNjfPhRBdqtlgdbGldwtCPgdb
-    ZmrHHmzpvSvvpzvmvDVCGlWVwCWtGtWCddggqf
-    QQpzFrHHQnzHvfTcNshcLRNFJhcR
-    QrPQDrppBQmCmFQm
-    TzqzsLfmsfSTfqzVLftNdJJNJGCwwGdgCwSGNC
-    TVHTfzWsfftsZstnbvrbWbrbppPbrmmP
-    BQrfqrLtJnttqqtQBJDDtBnDzRgldhVVpJlgzpzhpzsgslhV
-    TTNcPZCvZjmPFZjvPHLlWdNLghVhzzlllpVd
-    jcFPbTcZTFcmcjMjjFjbLwbnDBtfqbtBwfwSBnrbGw
-    SZJNJtrNzjjNCzlBBmqmQDBBmDBBjB
-    PGPbGwhLsnvwnVbGPVMZsDsTBBgcZgBBDBfDBf
-    pnnhhvphGVpvRPnJlSFRNNJHZHSdSR
-    hbmDDmwnnVGbhmjNrrWwLNLsWBrw
-    dMrgvcQqdjlBLlfW
-    HzzPSrcHqFHQgzpPcMpQqrtmbbbRhHHVGnZDnVHhVbVZ
-    RwtvdPRvSlTQmHHBQBRL
-    FjVSjrsFVnFQnTHmnT
-    VCVVMrWWjVGgbcNVGCCVdlvfdqfvwbSzwqfwZzwv
-    fmPDwJPDFRmRgPdwwwDNwgwPzhSQzVSzVTQdzHZzHhzQMQzQ
-    sWtGCWtpcqqpNnQjjzhVTTVQczhj
-    tWBGntsCNlqrWswDRfFrbFrPDbPf
-    dmzmjcbQjjQztFNqsqBcMJqNPF
-    nlTWnClWwQDTVnTrsMsCRBPZRJRJqRJq
-    wTrhwpVVvgvlDpTvVWVDdLfzgbLtbzSQLSzzjzLz
-    RWZdHvRdBRGbbvCjJnbn
-    pqqpSwzpSSbCwPwjlwjl
-    gDzzqSVzqrThpDBtRtCZdQRQLrQQ
-    GRqTGqtmTVdGHHVVNNlhPlMqbNqNDbqW
-    LzQSdFnfznfwBcLcnFppBBDDMPMPhDbhlwbWPlbWMjrD
-    QznFnLZFvVvHRgsddG
-    BBHBfBHFdSltmWJvqtNtHq
-    TQDrrVMzVDnWnNZDJc
-    gWzprTCrCMQzGGjjhwFwdffjfl
-    LLLSSSzBBlBLsszncCBZSPSMMMpdWTdrmmnfVGVmMfmrmm
-    DghttvwhHRvjJthNJwhVtDHGpddMWdMmrMmfGdppjWTfpq
-    gbJRthQDDRvwtDhQhDFPcVcbPczLzPBScBBF
-    sZsZpTtLCsbspZtTwrCwrwtDmNNdJmmqSJfqmfNGNmHqGdqb
-    nQvjTcjQglFVlllMFMVFqWfNqnNHHHdfSfHqfSJq
-    hFvvgFcFVzphpTrrwZDp
-    qJqfhsBpfSpchpqcrqwCDvvCDQndmpwDtnRQ
-    jWHPZWWjZsCmCWRDmQ
-    PPzMGHlzMNsPLPlZsllgsNrhNVBqhFVBbBSqFFBFrV
-    RnRsFFdSzmgwvQsqwc
-    lbgHGMBHlWWWlfWGGBtGwqDpDwmcpMrrqrQDZrMZ
-    GGJLBVJbVGjGtHVfJtWGHBLLPdzdCghnRnRnSShgNnhnddhj
-    VgzLFjjwhhSwFhVZgRhRgHHCCvdZdrqqCTvBCrqvvr
-    ncnNbGMcPpvHFrssdBHM
-    cnctcNNbQGWFJctftgVmzShzzwwVwgmwfR
-    pFWmSSFGQlvTbwWTwH
-    jdBgNhRgMftNBhPbhHnZHlTTZcwZ
-    lfBNRjCtCfMjsBfCjgfNBRMppGpJqsJQGrrmmJDpGmDDFG
-    GznngnhzccVdgjbbVjVjVbVLwwQJmQMrLTZhJmZLQTJWmm
-    pDBSslPCFPCpvCqvpPBQTlQLrdlJWrLJLmrlrr
-    psSsBptpCBdjtcjNVcGG
-    sssppsmchwspFLtvHhQJMtFb
-    rRLDqRVLNSMvFSSV
-    WDrLnzrDqzRqRzzfLgRnzrnsssZZZsZBgCwwmBppwBspZc
-    MtPbwvzzVtzfsqGGVpdSjsLd
-    DnNRCDJBnHJDHDnrDTRcnNZpZSsSLqjpdqqqSMqdddTj
-    CFRFRFHgDRnRgMtfFvvwzwvwvzWv
-    PNpFPncvvchPpNjpFhvPhPLmBwMgDRRwRgMDhBmLzBDD
-    trHSrdTtslWrSWmfzgmMnfBzmn
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-    FNwGNCCFHcVTHcFdHHHTDzMzfsgzwpPWMmPflmtt
-    """;
-
-    #endregion
 }

Days/Day5.cs

@@ -5,592 +5,117 @@ namespace AdventOfCode.Days;
 public class Day5 : Day
 {
     public override int Number => 5;
-    public override string Name => "Supply Stacks";
-
-    private IDictionary<int, Stack<char>>? _stacks;
+    public override string Name => "Print Queue";
 
     public override void RunPart1(bool display = true)
     {
-        _stacks = InitStacks();
+        var result = 0;
 
-        foreach (var line in Input.ReadAllLines())
+        var precedences = new HashSet<int>?[100];
+
+        var readingPrecedences = true;
+        foreach (var line in Input.AsSpan().EnumerateLines())
         {
-            var split = line.Split(' ');
-            var moveCount = int.Parse(split[1]);
-            var fromStack = _stacks[int.Parse(split[3])];
-            var toStack = _stacks[int.Parse(split[5])];
-
-            for (int i = 0; i < moveCount; i++)
+            if (line.IsWhiteSpace())
             {
-                toStack.Push(fromStack.Pop());
+                readingPrecedences = false;
+
+                continue;
+            }
+
+            if (readingPrecedences)
+            {
+                var split = line.Split('|');
+                split.MoveNext();
+
+                var ruleTarget = int.Parse(line[split.Current]);
+
+                split.MoveNext();
+
+                var ruleNumber = int.Parse(line[split.Current]);
+
+                if (precedences[ruleTarget] is not { } precedenceSet)
+                {
+                    precedenceSet = [ ruleNumber ];
+                    precedences[ruleTarget] = precedenceSet;
+                }
+                else
+                {
+                    precedenceSet.Add(ruleNumber);
+                }
+            }
+            else
+            {
+                result += CheckLine(line);
             }
         }
 
         if (display)
         {
-            for (int i = 1; i <= 9; i++)
+            AnsiConsole.MarkupLine($"[green]Sum of middle page numbers: [yellow]{result}[/][/]");
+        }
+
+        return;
+
+        int CheckLine(ReadOnlySpan<char> line)
+        {
+            Span<int> positions = stackalloc int[100];
+
+            // Read line to get positions
+            var position = 1;
+            foreach (var range in line.Split(','))
             {
-                AnsiConsole.Markup($"[{(i % 2 == 0 ? "yellow" : "green")}]{_stacks[i].Pop()}[/]");
+                var number = int.Parse(line[range]);
+
+                positions[number] = position;
+
+                position++;
             }
-            AnsiConsole.WriteLine();
+
+            var middlePosition = (position - 1) / 2;
+            var middleNumber = 0;
+
+            var index = 0;
+            // Check if positions respect precedence rules
+            foreach (var range in line.Split(','))
+            {
+                var number = int.Parse(line[range]);
+
+                // Fetch middle number
+                if (index == middlePosition)
+                {
+                    middleNumber = number;
+                }
+                index++;
+
+                if (precedences[number] is not { } precedenceSet)
+                {
+                    continue;
+                }
+
+                var numberPosition = positions[number];
+
+                // Check all precedence rules for numbers in the list
+                foreach (var nextNumber in precedenceSet)
+                {
+                    var nextNumberPosition = positions[nextNumber];
+
+                    if (nextNumberPosition != 0 && numberPosition >= nextNumberPosition)
+                    {
+                        return 0;
+                    }
+                }
+            }
+
+            return middleNumber;
         }
     }
 
     public override void RunPart2(bool display = true)
     {
-        _stacks = InitStacks();
-
-        foreach (var line in Input.ReadAllLines())
-        {
-            var split = line.Split(' ');
-            var moveCount = int.Parse(split[1]);
-            var fromStack = _stacks[int.Parse(split[3])];
-            var toStack = _stacks[int.Parse(split[5])];
-
-            // Push items in reverse order and remove them from the other stack
-            var items = fromStack.Take(moveCount).Reverse().ToArray();
-            foreach (var item in items)
-            {
-                toStack.Push(item);
-                fromStack.Pop();
-            }
-        }
-
-        if (display)
-        {
-            for (int i = 1; i <= 9; i++)
-            {
-                AnsiConsole.Markup($"[{(i % 2 == 0 ? "yellow" : "green")}]{_stacks[i].Pop()}[/]");
-            }
-            AnsiConsole.WriteLine();
-        }
+        // if (display)
+        // {
+        //     AnsiConsole.MarkupLine($"[green]Number of safe reports: [yellow]{xmasCount}[/][/]");
+        // }
     }
-
-    #region Input
-
-    private static IDictionary<int, Stack<char>> InitStacks()
-    {
-        var stacks = new Dictionary<int, Stack<char>>
-        {
-            [1] = new("SLFZDBRH".Reverse()),
-            [2] = new("RZMBT".Reverse()),
-            [3] = new("SNHCLZ".Reverse()),
-            [4] = new("JFCS".Reverse()),
-            [5] = new("BZRWHGP".Reverse()),
-            [6] = new("TMNDGZJV".Reverse()),
-            [7] = new("QPSFWNLG".Reverse()),
-            [8] = new("RZM".Reverse()),
-            [9] = new("TRVGLCM".Reverse())
-        };
-
-        return stacks;
-    }
-
-    public const string Input =
-    """
-    move 6 from 1 to 7
-    move 2 from 2 to 4
-    move 2 from 7 to 4
-    move 6 from 4 to 3
-    move 1 from 5 to 1
-    move 3 from 8 to 3
-    move 15 from 3 to 4
-    move 6 from 5 to 9
-    move 14 from 4 to 2
-    move 3 from 2 to 7
-    move 1 from 2 to 7
-    move 9 from 9 to 1
-    move 3 from 2 to 1
-    move 7 from 6 to 7
-    move 1 from 6 to 8
-    move 2 from 9 to 1
-    move 9 from 2 to 3
-    move 8 from 3 to 9
-    move 1 from 1 to 4
-    move 1 from 8 to 6
-    move 1 from 6 to 2
-    move 5 from 9 to 8
-    move 2 from 9 to 1
-    move 1 from 4 to 2
-    move 17 from 1 to 9
-    move 1 from 3 to 1
-    move 3 from 2 to 3
-    move 2 from 4 to 5
-    move 12 from 7 to 3
-    move 16 from 9 to 2
-    move 5 from 7 to 5
-    move 2 from 1 to 2
-    move 1 from 3 to 6
-    move 1 from 4 to 6
-    move 1 from 7 to 3
-    move 1 from 6 to 3
-    move 7 from 3 to 4
-    move 5 from 8 to 3
-    move 1 from 6 to 7
-    move 7 from 3 to 4
-    move 6 from 3 to 1
-    move 2 from 4 to 8
-    move 1 from 5 to 2
-    move 10 from 4 to 5
-    move 3 from 5 to 2
-    move 2 from 8 to 9
-    move 5 from 2 to 8
-    move 1 from 3 to 5
-    move 2 from 5 to 8
-    move 12 from 5 to 7
-    move 1 from 4 to 2
-    move 5 from 9 to 4
-    move 1 from 2 to 5
-    move 6 from 1 to 3
-    move 6 from 3 to 5
-    move 10 from 7 to 4
-    move 2 from 7 to 3
-    move 4 from 7 to 6
-    move 1 from 9 to 5
-    move 12 from 2 to 1
-    move 1 from 8 to 7
-    move 3 from 7 to 4
-    move 4 from 4 to 8
-    move 7 from 5 to 3
-    move 1 from 2 to 4
-    move 10 from 1 to 5
-    move 2 from 1 to 2
-    move 4 from 6 to 7
-    move 8 from 8 to 3
-    move 5 from 4 to 9
-    move 12 from 3 to 8
-    move 4 from 3 to 8
-    move 2 from 9 to 2
-    move 3 from 5 to 4
-    move 1 from 3 to 5
-    move 1 from 7 to 6
-    move 14 from 4 to 6
-    move 6 from 5 to 9
-    move 8 from 2 to 8
-    move 3 from 5 to 7
-    move 21 from 8 to 4
-    move 16 from 4 to 9
-    move 8 from 6 to 2
-    move 4 from 6 to 1
-    move 1 from 4 to 6
-    move 2 from 4 to 8
-    move 3 from 1 to 8
-    move 2 from 4 to 6
-    move 1 from 6 to 2
-    move 3 from 8 to 4
-    move 2 from 2 to 5
-    move 2 from 5 to 7
-    move 1 from 8 to 9
-    move 1 from 4 to 9
-    move 1 from 1 to 6
-    move 3 from 6 to 3
-    move 3 from 2 to 3
-    move 1 from 4 to 6
-    move 3 from 6 to 7
-    move 10 from 9 to 7
-    move 1 from 4 to 7
-    move 6 from 8 to 3
-    move 1 from 6 to 8
-    move 2 from 2 to 5
-    move 1 from 2 to 1
-    move 1 from 8 to 9
-    move 1 from 2 to 8
-    move 1 from 1 to 9
-    move 7 from 9 to 1
-    move 1 from 8 to 5
-    move 7 from 1 to 7
-    move 3 from 5 to 8
-    move 3 from 7 to 2
-    move 1 from 8 to 4
-    move 1 from 2 to 4
-    move 2 from 4 to 6
-    move 5 from 3 to 1
-    move 9 from 7 to 2
-    move 6 from 3 to 8
-    move 8 from 2 to 7
-    move 2 from 6 to 4
-    move 2 from 1 to 7
-    move 2 from 1 to 4
-    move 24 from 7 to 4
-    move 4 from 8 to 9
-    move 2 from 7 to 5
-    move 1 from 5 to 2
-    move 1 from 3 to 8
-    move 4 from 2 to 8
-    move 13 from 9 to 2
-    move 2 from 8 to 6
-    move 3 from 9 to 6
-    move 26 from 4 to 2
-    move 1 from 5 to 7
-    move 2 from 6 to 2
-    move 2 from 4 to 1
-    move 7 from 2 to 1
-    move 15 from 2 to 6
-    move 8 from 2 to 8
-    move 4 from 6 to 8
-    move 9 from 2 to 9
-    move 13 from 6 to 7
-    move 6 from 1 to 9
-    move 2 from 2 to 4
-    move 4 from 1 to 6
-    move 3 from 8 to 3
-    move 1 from 4 to 9
-    move 2 from 6 to 7
-    move 1 from 4 to 3
-    move 3 from 3 to 2
-    move 14 from 7 to 4
-    move 5 from 9 to 5
-    move 9 from 8 to 5
-    move 7 from 9 to 6
-    move 2 from 5 to 6
-    move 2 from 9 to 2
-    move 10 from 5 to 1
-    move 1 from 3 to 1
-    move 2 from 8 to 1
-    move 1 from 9 to 2
-    move 1 from 7 to 5
-    move 4 from 2 to 1
-    move 1 from 9 to 8
-    move 3 from 4 to 1
-    move 1 from 8 to 6
-    move 12 from 1 to 5
-    move 1 from 1 to 6
-    move 1 from 7 to 5
-    move 4 from 6 to 9
-    move 2 from 2 to 4
-    move 1 from 9 to 6
-    move 1 from 1 to 5
-    move 2 from 9 to 7
-    move 10 from 6 to 5
-    move 1 from 6 to 7
-    move 20 from 5 to 1
-    move 1 from 7 to 9
-    move 2 from 9 to 1
-    move 3 from 5 to 1
-    move 2 from 8 to 4
-    move 2 from 8 to 7
-    move 1 from 5 to 9
-    move 1 from 8 to 4
-    move 22 from 1 to 7
-    move 5 from 4 to 8
-    move 1 from 5 to 9
-    move 19 from 7 to 4
-    move 2 from 9 to 1
-    move 1 from 5 to 9
-    move 10 from 1 to 8
-    move 1 from 9 to 1
-    move 1 from 8 to 3
-    move 8 from 4 to 7
-    move 1 from 5 to 6
-    move 3 from 4 to 5
-    move 1 from 5 to 9
-    move 11 from 7 to 4
-    move 4 from 4 to 9
-    move 1 from 6 to 2
-    move 1 from 3 to 9
-    move 5 from 9 to 4
-    move 5 from 7 to 9
-    move 23 from 4 to 2
-    move 17 from 2 to 7
-    move 2 from 2 to 8
-    move 4 from 4 to 7
-    move 1 from 4 to 5
-    move 2 from 5 to 2
-    move 5 from 8 to 9
-    move 5 from 2 to 7
-    move 9 from 7 to 5
-    move 11 from 9 to 2
-    move 1 from 4 to 3
-    move 5 from 8 to 7
-    move 3 from 8 to 5
-    move 2 from 1 to 3
-    move 2 from 3 to 9
-    move 1 from 5 to 8
-    move 5 from 7 to 5
-    move 15 from 5 to 4
-    move 2 from 8 to 1
-    move 2 from 5 to 1
-    move 4 from 4 to 1
-    move 1 from 8 to 7
-    move 8 from 2 to 1
-    move 4 from 2 to 8
-    move 2 from 7 to 4
-    move 5 from 8 to 6
-    move 5 from 7 to 9
-    move 4 from 6 to 5
-    move 7 from 4 to 8
-    move 1 from 6 to 1
-    move 1 from 3 to 1
-    move 2 from 5 to 1
-    move 7 from 1 to 5
-    move 5 from 1 to 3
-    move 4 from 7 to 9
-    move 4 from 3 to 9
-    move 2 from 9 to 7
-    move 6 from 9 to 2
-    move 1 from 4 to 1
-    move 1 from 3 to 5
-    move 1 from 2 to 5
-    move 5 from 9 to 4
-    move 4 from 4 to 6
-    move 1 from 8 to 9
-    move 8 from 4 to 3
-    move 7 from 7 to 3
-    move 5 from 1 to 3
-    move 11 from 5 to 9
-    move 1 from 7 to 6
-    move 2 from 3 to 5
-    move 1 from 3 to 1
-    move 3 from 6 to 2
-    move 2 from 5 to 1
-    move 2 from 1 to 2
-    move 3 from 1 to 5
-    move 5 from 9 to 2
-    move 2 from 6 to 8
-    move 2 from 3 to 8
-    move 4 from 9 to 7
-    move 3 from 5 to 2
-    move 2 from 1 to 8
-    move 1 from 9 to 8
-    move 1 from 9 to 2
-    move 4 from 7 to 9
-    move 11 from 8 to 7
-    move 1 from 8 to 2
-    move 6 from 9 to 7
-    move 3 from 7 to 1
-    move 13 from 2 to 7
-    move 24 from 7 to 1
-    move 2 from 2 to 6
-    move 1 from 8 to 3
-    move 1 from 9 to 3
-    move 5 from 2 to 4
-    move 1 from 2 to 5
-    move 1 from 6 to 2
-    move 1 from 6 to 3
-    move 1 from 2 to 4
-    move 3 from 7 to 3
-    move 2 from 1 to 7
-    move 2 from 3 to 8
-    move 2 from 7 to 8
-    move 9 from 3 to 2
-    move 3 from 4 to 8
-    move 1 from 5 to 1
-    move 9 from 2 to 1
-    move 3 from 4 to 9
-    move 1 from 7 to 8
-    move 6 from 3 to 9
-    move 2 from 1 to 5
-    move 15 from 1 to 3
-    move 13 from 3 to 9
-    move 11 from 1 to 4
-    move 5 from 4 to 1
-    move 6 from 3 to 6
-    move 4 from 4 to 8
-    move 6 from 1 to 4
-    move 1 from 5 to 2
-    move 1 from 2 to 1
-    move 3 from 4 to 2
-    move 2 from 8 to 5
-    move 2 from 4 to 2
-    move 9 from 9 to 3
-    move 9 from 3 to 5
-    move 2 from 9 to 4
-    move 5 from 2 to 6
-    move 1 from 1 to 8
-    move 1 from 4 to 1
-    move 10 from 9 to 2
-    move 9 from 2 to 4
-    move 10 from 4 to 1
-    move 3 from 1 to 3
-    move 4 from 1 to 2
-    move 5 from 2 to 4
-    move 2 from 5 to 2
-    move 4 from 1 to 7
-    move 10 from 5 to 4
-    move 2 from 2 to 4
-    move 1 from 9 to 2
-    move 2 from 3 to 5
-    move 1 from 3 to 5
-    move 3 from 6 to 7
-    move 8 from 4 to 9
-    move 6 from 6 to 1
-    move 4 from 9 to 5
-    move 2 from 9 to 1
-    move 1 from 2 to 6
-    move 6 from 5 to 2
-    move 3 from 7 to 9
-    move 4 from 8 to 2
-    move 1 from 7 to 9
-    move 1 from 5 to 3
-    move 2 from 7 to 4
-    move 1 from 7 to 1
-    move 14 from 1 to 9
-    move 1 from 1 to 9
-    move 1 from 3 to 8
-    move 3 from 2 to 5
-    move 2 from 4 to 2
-    move 6 from 8 to 1
-    move 1 from 2 to 1
-    move 5 from 1 to 9
-    move 1 from 1 to 7
-    move 2 from 8 to 5
-    move 1 from 5 to 4
-    move 1 from 6 to 1
-    move 8 from 2 to 7
-    move 2 from 6 to 1
-    move 9 from 9 to 5
-    move 11 from 4 to 8
-    move 4 from 7 to 4
-    move 6 from 4 to 6
-    move 1 from 7 to 4
-    move 6 from 6 to 7
-    move 1 from 5 to 9
-    move 6 from 8 to 9
-    move 8 from 9 to 5
-    move 1 from 4 to 5
-    move 15 from 9 to 3
-    move 3 from 1 to 4
-    move 6 from 7 to 2
-    move 3 from 4 to 9
-    move 2 from 7 to 3
-    move 1 from 7 to 3
-    move 1 from 7 to 2
-    move 2 from 8 to 1
-    move 3 from 8 to 5
-    move 2 from 1 to 7
-    move 8 from 3 to 6
-    move 3 from 6 to 5
-    move 1 from 6 to 1
-    move 10 from 5 to 7
-    move 6 from 5 to 4
-    move 4 from 2 to 4
-    move 6 from 5 to 1
-    move 6 from 1 to 8
-    move 2 from 9 to 2
-    move 2 from 9 to 7
-    move 6 from 3 to 7
-    move 1 from 3 to 5
-    move 1 from 1 to 9
-    move 2 from 8 to 1
-    move 2 from 5 to 4
-    move 3 from 3 to 7
-    move 10 from 4 to 6
-    move 1 from 9 to 7
-    move 12 from 7 to 3
-    move 12 from 3 to 8
-    move 2 from 1 to 5
-    move 1 from 1 to 3
-    move 13 from 8 to 1
-    move 7 from 7 to 1
-    move 13 from 6 to 9
-    move 1 from 7 to 4
-    move 6 from 5 to 3
-    move 3 from 4 to 3
-    move 6 from 3 to 1
-    move 10 from 9 to 4
-    move 2 from 7 to 6
-    move 8 from 1 to 9
-    move 3 from 2 to 9
-    move 1 from 3 to 5
-    move 1 from 3 to 5
-    move 1 from 1 to 4
-    move 6 from 9 to 3
-    move 2 from 6 to 7
-    move 4 from 9 to 5
-    move 4 from 1 to 6
-    move 1 from 2 to 4
-    move 6 from 1 to 4
-    move 3 from 9 to 3
-    move 3 from 6 to 8
-    move 3 from 8 to 7
-    move 5 from 5 to 1
-    move 1 from 3 to 9
-    move 1 from 9 to 5
-    move 1 from 3 to 2
-    move 2 from 5 to 1
-    move 1 from 6 to 9
-    move 1 from 6 to 3
-    move 2 from 9 to 7
-    move 2 from 8 to 1
-    move 1 from 3 to 2
-    move 1 from 2 to 5
-    move 1 from 7 to 1
-    move 7 from 7 to 9
-    move 12 from 1 to 9
-    move 1 from 5 to 2
-    move 1 from 7 to 1
-    move 13 from 4 to 7
-    move 1 from 9 to 4
-    move 5 from 7 to 3
-    move 4 from 9 to 1
-    move 8 from 7 to 9
-    move 3 from 2 to 3
-    move 4 from 3 to 7
-    move 5 from 4 to 6
-    move 3 from 9 to 4
-    move 10 from 1 to 5
-    move 3 from 4 to 7
-    move 16 from 9 to 2
-    move 3 from 9 to 2
-    move 6 from 5 to 3
-    move 4 from 6 to 2
-    move 1 from 4 to 6
-    move 2 from 6 to 8
-    move 1 from 5 to 2
-    move 1 from 5 to 8
-    move 7 from 7 to 2
-    move 16 from 2 to 1
-    move 1 from 5 to 1
-    move 10 from 2 to 8
-    move 14 from 8 to 5
-    move 2 from 2 to 6
-    move 1 from 2 to 5
-    move 2 from 2 to 1
-    move 8 from 1 to 7
-    move 4 from 1 to 7
-    move 2 from 1 to 7
-    move 5 from 3 to 2
-    move 1 from 1 to 6
-    move 2 from 2 to 5
-    move 4 from 1 to 7
-    move 1 from 2 to 8
-    move 1 from 2 to 8
-    move 3 from 6 to 7
-    move 10 from 7 to 5
-    move 1 from 2 to 8
-    move 27 from 5 to 9
-    move 1 from 5 to 6
-    move 1 from 6 to 4
-    move 1 from 4 to 3
-    move 3 from 3 to 7
-    move 4 from 3 to 6
-    move 2 from 6 to 4
-    move 3 from 8 to 1
-    move 2 from 6 to 1
-    move 12 from 7 to 8
-    move 2 from 3 to 9
-    move 1 from 9 to 2
-    move 1 from 2 to 8
-    move 2 from 1 to 2
-    move 6 from 3 to 8
-    move 1 from 7 to 4
-    move 15 from 9 to 5
-    move 7 from 9 to 4
-    move 1 from 2 to 1
-    move 16 from 8 to 2
-    move 8 from 5 to 2
-    move 24 from 2 to 9
-    move 3 from 1 to 2
-    move 24 from 9 to 1
-    move 5 from 5 to 9
-    move 3 from 4 to 1
-    move 1 from 7 to 6
-    move 1 from 6 to 3
-    move 1 from 3 to 2
-    move 3 from 2 to 3
-    move 1 from 5 to 6
-    move 1 from 2 to 7
-    """;
-
-    #endregion
 }

Days/Day6.cs

@@ -1,3 +1,4 @@
+using System.Numerics;
 using Spectre.Console;
 
 namespace AdventOfCode.Days;
@@ -5,75 +6,189 @@ namespace AdventOfCode.Days;
 public class Day6 : Day
 {
     public override int Number => 6;
-    public override string Name => "Tuning Trouble";
+    public override string Name => "Guard Gallivant";
+
+    private const int GridSize = 130;
+
+    private static readonly Point DirectionUp = new(0, -1);
+    private static readonly Point DirectionDown = new(0, 1);
+    private static readonly Point DirectionLeft = new(-1, 0);
+    private static readonly Point DirectionRight = new(1, 0);
+
     public override void RunPart1(bool display = true)
     {
-        int position = 0;
+        HashSet<Point> visited = [];
+        var direction = DirectionUp;
 
-        // Store the last 4 characters in a stream (kind of like a sliding window)
-        var charStream = new Queue<char>();
-        charStream.Enqueue(Input[0]);
-        charStream.Enqueue(Input[1]);
-        charStream.Enqueue(Input[2]);
+        var (obstaclesGrid, position) = ReadInputGrid();
 
-        for (int i = 3; i < Input.Length; i++)
+        visited.Add(position);
+
+        // Move the guard till it leaves the grid
+        while (true)
         {
-            charStream.Enqueue(Input[i]);
+            var destination = position + direction;
 
-            // Check if all 4 chars are different
-            if (charStream.ToHashSet().Count == charStream.Count)
+            if (destination.X is < 0 or >= GridSize ||
+                destination.Y is < 0 or >= GridSize)
             {
-                position = i + 1;
                 break;
             }
 
-            charStream.Dequeue();
+            // Check if it's possible to move or if there is an obstacle
+            if (obstaclesGrid[destination.X, destination.Y])
+            {
+                direction = NextDirection(direction);
+
+                continue;
+            }
+
+            position = destination;
+
+            visited.Add(position);
         }
 
         if (display)
         {
-            AnsiConsole.MarkupLine($"[green]Position of start-of-packet marker is: [yellow]{position}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Amount of distinct positions: [yellow]{visited.Count}[/][/]");
         }
     }
 
     public override void RunPart2(bool display = true)
     {
-        const int length = 14;
-        int position = 0;
+        var possibleLoops = 0;
+        var (initialGrid, startPosition) = ReadInputGrid();
 
-        // Store the last 14 characters in a stream (kind of like a sliding window)
-        var charStream = new Queue<char>();
-        for (int i = 0; i < length - 1; i++)
+        for (var y = 0; y < GridSize; y++)
         {
-            charStream.Enqueue(Input[i]);
-        }
-
-        for (int i = length - 1; i < Input.Length; i++)
-        {
-            charStream.Enqueue(Input[i]);
-
-            // Check if all 14 chars are different
-            if (charStream.ToHashSet().Count == charStream.Count)
+            for (var x = 0; x < GridSize; x++)
             {
-                position = i + 1;
-                break;
-            }
+                // Store obstacle state
+                var initialState = initialGrid[x, y];
 
-            charStream.Dequeue();
+                // Check if grid is a loop after adding an obstacle there
+                initialGrid[x, y] = true;
+
+                if (IsLoop(initialGrid, startPosition))
+                {
+                    possibleLoops++;
+                }
+
+                // Restore obstacle state
+                initialGrid[x, y] = initialState;
+            }
         }
 
         if (display)
         {
-            AnsiConsole.MarkupLine($"[green]Position of start-of-message marker is: [yellow]{position}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Amount of possible loop positions: [yellow]{possibleLoops}[/][/]");
+        }
+
+        return;
+
+        bool IsLoop(bool[,] obstaclesGrid, Point position)
+        {
+            HashSet<(Point position, Point direction)> visited = [];
+            var direction = DirectionUp;
+
+            visited.Add((position, direction));
+
+            // Move the guard till it loops or leaves the grid
+            while (true)
+            {
+                var destination = position + direction;
+
+                if (visited.Contains((destination, direction)))
+                {
+                    return true;
+                }
+
+                if (destination.X is < 0 or >= GridSize || destination.Y is < 0 or >= GridSize)
+                {
+                    return false;
+                }
+
+                // Check if it's possible to move or if there is an obstacle
+                if (obstaclesGrid[destination.X, destination.Y])
+                {
+                    direction = NextDirection(direction);
+
+                    continue;
+                }
+
+                position = destination;
+
+                visited.Add((position, direction));
+            }
         }
     }
 
-    #region Input
+    private (bool[,] ObstaclesGrid, Point Start) ReadInputGrid()
+    {
+        var grid = new bool[GridSize, GridSize];
+        Point start = default;
 
-    public const string Input =
-    """
-    rgffbnnqvqhhmtmzzmmpmllcggsdswwvvwzzpptbppgngsnncwcnwcwnwgwrwrrnqnlqlccwggrcgrccjgcgwghgffjgjgrgmmsrrhchfcfdccjwwzdzcdcbcjjtfjjltlvvtstvttszsvsmmfccwcjwwzmzhhjvjpvjpppcwppdtdvtdvtvztzvzffdfqqgbgffrgrpgphhbcctssncsnncfcppvnpvnvfnfvnnfggtpplggwsggldllzvzrznncbbjpplbbrrnsrssmrsrhhmqmnqqhpqqnrqnrrtrnnrwrwhhpjhphlhvvgbgzztqtvvmssdshhqnhnjjvhjhqqbrqrrmrlrdllvrlvlccfvcffhfssgvsswhwqqfwfwhhcffjmmjrrbgrgjgrrvsrvvwmwsmmszzvmzvmmwmtthvvfbfllpjpwpwjpwpnpjpqqwtqtwwqpwqqrsqqcpqqssrgsrrjwwqmwmgwgrggmvmgmfgmffjfhjfjttcztccmtmmccnznhhcgcffmnfmmqjjhwwtccbzbhhwnhnsnmsnmnqqchhhnggbzbjzjzszsfsjfjvffnlffvrvddbhhqccdnnzwnznjnpnmppthhqddjhddqjqlqplqqjpjwppqttswsvwvfwflfplffnbfbwfwhhlhtlhtltzzmlmslmlwwgzwzrrwhhlnnrfnnmpppjpgpbbhpbhppbrppbhhzgzczqcqvqggwppcnnhnznvznzhhcpctptpjtppdhhprhrcrpcprpplrprzrnrfnrnlrlvrrfqqnnsqsqrssnrnvvvghvvbzzqppjsjnnrprwrrmqqtfqfwwrdrsddprddbdzbdbndbdjdljjrtjrrnzrzjrzzpssftfmfbflbbcpcsppwrppntnhthlthtbbsmsbmsmggpssnhnjjtsjjwssdjdwwppcbpcclmccwzzrggmgmnnwjnnqppjttvllmhhvcctptbpbdpdhdqqgggbnnqcchlhssltstllvqlvqvdvjdvvqvsvfvhfhlfftqffztzdttfvvzmvzznvnsnjjvqjvjljplpvvzlzhzghgddbbzbmbnztgthrnpsqhhdvprtpdftmqfvgjzgdvqwmvgwbczvbschqfhdvqcfnmbgmtqmlmsqcbfhshrzzbrtpgnwwtzgnjghzrlwhntprqhvshjcfvlnchccbtnswfnmpccdppqrqrhngvlwrpplbnpgzbzwtzwrsptmsmlndcfmbnqgvnqvzwpvrtfsrwfvfwdvplrfdddwcnwhzchmwfjsfvbtbrjchmgqwfvvmpzhqcbzhrcmjrzmgrtnzrcqdqdqnpwjctlhrjcphbbcvhvqnhtwjrvrbzfzfzzplshvrcchvtgtjcnhlzsttwdhcmdvrdlgsngvtzqsjrcptwwbgvfbsvgnmfhmvgqtfzbhhmdznjlsghhnlwzhvplfvlqzbrsjhdvrshjbnfqgpscbpzmnmmcsdbtwbwmsvfjwdvtctslcqfssrhczdptlrjbfzjctqrcbppcfcbqqzhhftdjchtscwgwcnpvrrjvnnwrqtrqmbgdfcpqhddnvdnmlmqcgsndwbcfvfrzsrflsnqrpmszqrdlshlcsfrmnsqmtrvjwqcllftscwrtmvcjsmrlqvdfjzgfdtswqzldqgjvhczpqrfbclnbwcjprjncvhgfmjhgfgnvfzfnvbbstgsgtspdhtfsncttlwmllbbvqftjtshfjlqtjwlvrbwmzfhdmcbhtqdzqtzmdljqprwhqwcvbtfqbpjwztgqrvlrqdwmqrqzvptsgjdqnqdfwfpjdglwgpdrcfrrzmpjmtbwwrqqcsnmphcqtthlnlzlfftrjmtjwwqrldcfjjclzrsqvltsfchfggcwbzbtpqcjfvgpwnwwqrdbdvjplgsgctdhqvttmtpmmjfcqdslhjgtdppbmzbrfbrrjncfdhlmjgdwjrmbgpcgctghbvphpgfvvfvtplqrhnjjhqntjvbsggvrvjgrwptcgqgrmjtprvhnvjsdsfqrqrrltlhvfsjsqpbwndbsnjzplcfqtfbdqdzdvnljcsmjnrmwwjzqwsjbdlclsmccbqwnlpltqhqhmthhrdjwlqwrbltghsvblqntvjqzpmmpqwrrwvhmtfqzhrmjfglwfpthhgbhdmrtprtqgqbdcfqlbbvmzmchzglmpzdvhpqchhclbcvrcmhtzqfzrplbvmdhghsttzgdjbgmmtvlqjsstgwlwchhwmflwbgljgszghvfdsngbtbcnhzmmdmsjqfbcsmgpjwjqgwqdlrgznnmhphbrzcgnqczpcbljjmhnnrmzlpqbswwcjpjqcrtdmgprpmmbprwlmpzcmwlnbzqjsgftrncvmjmjwvqgszsrmrczhjnwlghgndhbthwlhfbncrwqfgnshrmdfhwmfvllhvbmmllwfbgrnrttpzffzvcfjfbrmdqfcfrdqsltpbbttnqnbncfhwghfbgwrltbhwmmlpczsvvdnwhchgfplnjsttsqvsznwvlwzgfnhfrrgplsfwrwnbfhblwtjpldjmzrglhppgsjsgzssbbgrrbdmpwhgjjmlfnpdbvtntcwrvltgfnrgwttvvjhqljjvvnmztwgzcclgbjnjspzwnpgtgvhhhqbzrnvmdcljcdncvpnpdhrhqwvlhllbsrmjbzlgczwjsrvqrqfqmtjrnpbtdhsrfbhrgtgnrmlgcwcmrvrdfcqbfcqczjchgrjpzqfqqmcpvnvbrssfrfsrjmlngplqqsnclgvpfhjbzdppjftlgbmcgdbrvqrclvtdnzhhcmzlrdrgbrqrlvfcnvznnqwswvhdpbbjmsqzcrmjngzmdftjzsjvgfdtcvdwhnwwjlcgcmflzzpzpgzrvmptbjgrdjbzscrglhcjppdjdshnvvbsnnddtbwsdrpnbnlrtppcrzbbjrfzhbwgmjqtmgjvmrjgfdndlmqvhgwprsjnhcmrnfdfdzggjjzcccnsnwwbjzmsfjjfhclptfcwqjhnphpwzszjmsrtnbqpqsvcfcvrrgclwlbrqngdcdlzrdfpvbgtznjzdvjngrgswhjnrpgswtqflpgvnpbsvcrtgtzcbhdjpbjwnpdzcmprtzlppbqvpzrrlbssmwhhvqqpmwggnzwcfdnzccjrrncnvjqgbpstctwpqvhdsbcsjrpbzbdlwwvjngtbnvpthppglgsnrbwnvpzldhsgwqhclgwrdsvcfdclvdsbrhcfnbgrtqswstnjfmfrdgphpvgjfqzcwnpcghdhtflgdnhhnnnwrpnmppszgqdcqjqpnccfsqjsmwtqvzwfqvtwtthwswmcqqcqjwcgwgzgmnpzbfpzrqbvqhbhtsvvbppbmqzfnsmwppzvsctgcncztsqdfhnlwjjtvwcchvnphwpnpzqsjhlrcmnbthtqlfclnsfdtpwfzljdpfszvhgzdpzhbjtphbfbmwgfrfplntfqhgpbjzghmblzzhdcbptngqwrtfmvtbhphpvdwpswbscrwzhnvqfwlbwwqqgstgmbqlllspbhbpjmmrfhmjwzdnsdwmpvlrspgzmdjwqwcjpbgwspsghjdvrbbsbtgwptqdvvdhbhqbdhpbzdsdwsjdbjnztdqqrdhwhtpvcbblbmjgmbpqghdsfthzjffrdvldfsnpcsmnzwzcqlnvcrcbqnfcdrfbffrvhqsbqjnnbzsqvqqdqwmsvbqvtgmnnlthpngfsljqnrdhhzpmwsnqvrgdnvlbgnndfcpjfgmzqssvnnrwbmslcqpnhnnwzggsjvqcsqpfzjcmcppntmsdtfggzdncqbfjsqvbzgnnlsdbgjqffsmvnbqlsrjwdmcjbrsrpchnnhdtlcdhfdltmlvtrwjpzphtbhzzrlrwbbhhpntgbcfmphnbrjdhrhvmvhfglrncngjdsvbfrqtqzsgvlzjqzcqnwdcfgvnpsqpphwfsdvpgnchjnnjhsqgvlqcvhzzzcrsqcvrbsbjbdbgddlbb
-    """;
+        var y = 0;
+        foreach (var line in Input.AsSpan().EnumerateLines())
+        {
+            var x = 0;
 
-    #endregion
+            foreach (var symbol in line)
+            {
+                if (symbol == '^')
+                {
+                    start = new Point(x, y);
+
+                    grid[x, y] = false;
+                }
+                else
+                {
+                    grid[x, y] = symbol switch
+                    {
+                        '#' => true,
+                        _ => false
+                    };
+                }
+
+                x++;
+            }
+
+            y++;
+        }
+
+        return (grid, start);
+    }
+
+    private static Point NextDirection(Point direction)
+    {
+        if (direction == DirectionUp)
+        {
+            return DirectionRight;
+        }
+
+        if (direction == DirectionRight)
+        {
+            return DirectionDown;
+        }
+
+        if (direction == DirectionDown)
+        {
+            return DirectionLeft;
+        }
+
+        if (direction == DirectionLeft)
+        {
+            return DirectionUp;
+        }
+
+        throw new ArgumentException("Invalid direction", nameof(direction));
+    }
+
+    private readonly record struct Point(int X, int Y) : IAdditionOperators<Point, Point, Point>
+    {
+        public static Point operator +(Point left, Point right)
+        {
+            return new Point(left.X + right.X, left.Y + right.Y);
+        }
+    }
 }

Days/Day8.cs

@@ -1,314 +1,169 @@
-using Spectre.Console;
+using System.Collections.Frozen;
+using System.Numerics;
+using Spectre.Console;
 
 namespace AdventOfCode.Days;
 
 public class Day8 : Day
 {
     public override int Number => 8;
-    public override string Name => "Treetop Tree House";
+    public override string Name => "Resonant Collinearity";
+
+    private const int GridSize = 50;
+
     public override void RunPart1(bool display = true)
     {
-        var grid = CreateGrid();
+        HashSet<Point> antinodePositions = [];
 
-        var valid = new HashSet<(int, int)>();
+        var frequencyAntennas = ParseAntennas();
 
-        // Check each line from left to right
-        for (int i = 0; i < grid.GetLength(0); i++)
+        // Find antinodes for each frequency
+        foreach (var (_, antennas) in frequencyAntennas)
         {
-            int previousTreeSize = -1;
-
-            for (int j = 0; j < grid.GetLength(1); j++)
+            // Take antennas by pair to find antinodes
+            foreach (var firstAntenna in antennas)
             {
-                var size = grid[i, j];
-
-                // The tree on the left is blocking the view, stop searching on this line
-                if (size <= previousTreeSize)
+                foreach (var secondAntenna in antennas.Where(a => a != firstAntenna))
                 {
-                    continue;
-                }
+                    var firstAntinode = firstAntenna + (firstAntenna - secondAntenna);
+                    var secondAntinode = secondAntenna + (secondAntenna - firstAntenna);
 
-                valid.Add((i, j));
-                previousTreeSize = size;
+                    if (firstAntinode is { X: >= 0 and < GridSize, Y: >= 0 and < GridSize })
+                    {
+                        antinodePositions.Add(firstAntinode);
+                    }
+
+                    if (secondAntinode is { X: >= 0 and < GridSize, Y: >= 0 and < GridSize })
+                    {
+                        antinodePositions.Add(secondAntinode);
+                    }
+                }
             }
         }
 
-        // Check each line from right to left
-        for (int i = 0; i < grid.GetLength(0); i++)
-        {
-            int previousTreeSize = -1;
-
-            for (int j = grid.GetLength(1) - 1; j >= 0; j--)
-            {
-                var size = grid[i, j];
-
-                // The tree on the left is blocking the view, don't take it
-                if (size <= previousTreeSize)
-                {
-                    continue;
-                }
-
-                valid.Add((i, j));
-                previousTreeSize = size;
-            }
-        }
-
-        // Check each column from top to bottom
-        for (int j = 0; j < grid.GetLength(1); j++)
-        {
-            int previousTreeSize = -1;
-
-            for (int i = 0; i < grid.GetLength(0); i++)
-            {
-                var size = grid[i, j];
-
-                // The tree on the top is blocking the view, stop searching on this column
-                if (size <= previousTreeSize)
-                {
-                    continue;
-                }
-
-                valid.Add((i, j));
-                previousTreeSize = size;
-            }
-        }
-
-        // Check each column from bottom to top
-        for (int j = 0; j < grid.GetLength(1); j++)
-        {
-            int previousTreeSize = -1;
-
-            for (int i = grid.GetLength(0) - 1; i >= 0; i--)
-            {
-                var size = grid[i, j];
-
-                // The tree on bottom is blocking the view, stop searching on this column
-                if (size <= previousTreeSize)
-                {
-                    continue;
-                }
-
-                valid.Add((i, j));
-                previousTreeSize = size;
-            }
-        }
-
-
         if (display)
         {
-            AnsiConsole.MarkupLine($"[green]Total viewable trees: [yellow]{valid.Count}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Unique antinode positions count: [yellow]{antinodePositions.Count}[/][/]");
         }
     }
 
     public override void RunPart2(bool display = true)
     {
-        var grid = CreateGrid();
+        HashSet<Point> antinodePositions = [];
 
-        var maxScenicScore = 0;
+        var frequencyAntennas = ParseAntennas();
 
-        // Compute scenic score for each tree
-        for (int i = 0; i < grid.GetLength(0); i++)
+        // Find antinodes for each frequency
+        foreach (var (_, antennas) in frequencyAntennas)
         {
-            for (int j = 0; j < grid.GetLength(1); j++)
+            // Take antennas by pair to find antinodes
+            foreach (var firstAntenna in antennas)
             {
-                var size = grid[i, j];
-                var score = ComputeScenicScore(grid, i, j, size);
-
-                if (score > maxScenicScore)
+                foreach (var secondAntenna in antennas.Where(a => a != firstAntenna))
                 {
-                    maxScenicScore = score;
+                    // Always add antinodes on antennas if a pair is formed
+                    antinodePositions.Add(firstAntenna);
+                    antinodePositions.Add(secondAntenna);
+
+                    // Compute potential antinode positions
+                    var firstAntinodeOffset = firstAntenna - secondAntenna;
+                    var secondAntinodeOffset = secondAntenna - firstAntenna;
+
+                    for (var i = 1; ; i++)
+                    {
+                        var firstAntinode = firstAntenna + (i * firstAntinodeOffset);
+
+                        if (firstAntinode is { X: >= 0 and < GridSize, Y: >= 0 and < GridSize })
+                        {
+                            antinodePositions.Add(firstAntinode);
+                        }
+                        else
+                        {
+                            break;
+                        }
+                    }
+
+                    for (var i = 1; ; i++)
+                    {
+                        var secondAntinode = secondAntenna + (i * secondAntinodeOffset);
+
+                        if (secondAntinode is { X: >= 0 and < GridSize, Y: >= 0 and < GridSize })
+                        {
+                            antinodePositions.Add(secondAntinode);
+                        }
+                        else
+                        {
+                            break;
+                        }
+                    }
                 }
             }
         }
 
         if (display)
         {
-            AnsiConsole.MarkupLine($"[green]Max scenic score: [yellow]{maxScenicScore}[/][/]");
+            AnsiConsole.MarkupLine($"[green]Unique antinode positions count: [yellow]{antinodePositions.Count}[/][/]");
         }
     }
 
-    private int ComputeScenicScore(int[,] grid, int i, int j, int size)
+    private FrozenDictionary<char, List<Point>> ParseAntennas()
     {
-        var visibleTreeCountLeft = 0;
-        var visibleTreeCountRight = 0;
-        var visibleTreeCountTop = 0;
-        var visibleTreeCountBottom = 0;
+        var antennas = new Dictionary<char, List<Point>>();
 
-        // Look on left
-        for (int x = j - 1; x >= 0; x--)
+        var y = 0;
+        foreach (var line in Input.AsSpan().EnumerateLines())
         {
-            visibleTreeCountLeft++;
-            var nextTreeSize = grid[i, x];
+            var x = 0;
 
-            // Blocking the view
-            if (nextTreeSize >= size)
+            foreach (var frequency in line)
             {
-                break;
+                if (frequency is '.')
+                {
+                    x++;
+
+                    continue;
+                }
+
+                if (!antennas.TryGetValue(frequency, out var list))
+                {
+                    list = [];
+                    antennas[frequency] = list;
+                }
+
+                list.Add(new Point(x, y));
+
+                x++;
             }
+
+            y++;
         }
 
-        // Look on right
-        for (int x = j + 1; x < grid.GetLength(1); x++)
-        {
-            visibleTreeCountRight++;
-            var nextTreeSize = grid[i, x];
-
-            // Blocking the view
-            if (nextTreeSize >= size)
-            {
-                break;
-            }
-        }
-
-        // Look on top
-        for (int y = i - 1; y >= 0; y--)
-        {
-            visibleTreeCountTop++;
-            var nextTreeSize = grid[y, j];
-
-            // Blocking the view
-            if (nextTreeSize >= size)
-            {
-                break;
-            }
-        }
-
-        // Look on bottom
-        for (int y = i + 1; y < grid.GetLength(0); y++)
-        {
-            visibleTreeCountBottom++;
-            var nextTreeSize = grid[y, j];
-
-            // Blocking the view
-            if (nextTreeSize >= size)
-            {
-                break;
-            }
-        }
-
-        return visibleTreeCountLeft * visibleTreeCountRight * visibleTreeCountTop * visibleTreeCountBottom;
+        return antennas.ToFrozenDictionary();
     }
 
-    private int[,] CreateGrid()
+    private readonly record struct Point(int X, int Y)
+        : IAdditionOperators<Point, Point, Point>,
+            ISubtractionOperators<Point, Point, Point>,
+            IMultiplyOperators<Point, int, Point>
     {
-        var lines = Input.Split('\n').Select(s => s.Trim()).ToArray();
-
-        var grid = new int[lines.Length, lines[0].Length];
-
-        for (int i = 0; i < grid.GetLength(0); i++)
+        public static Point operator +(Point left, Point right)
         {
-            for (int j = 0; j < grid.GetLength(1); j++)
-            {
-                grid[i, j] = int.Parse(lines[i][j].ToString());
-            }
+            return new Point(left.X + right.X, left.Y + right.Y);
         }
 
-        return grid;
+        public static Point operator -(Point left, Point right)
+        {
+            return new Point(left.X - right.X, left.Y - right.Y);
+        }
+
+        public static Point operator *(Point left, int right)
+        {
+            return new Point(left.X * right, left.Y * right);
+        }
+
+        public static Point operator *(int left, Point right)
+        {
+            return new Point(right.X * left, right.Y * left);
+        }
     }
-
-    #region Input
-
-    public const string Input =
-    """
-    220102001303332210111144403232401113333122342344231242454143210203320302212443030013122003001101100
-    002012111323310331302003042221132010432132445255133124455255223004414440440003301012203200022100210
-    200201202011003110423331304200331011531224544245554512113213335525210302033141324322321031312102110
-    100020212221032131124244103404003222433224521422334123232422124515312313433224100204010121132311000
-    200113321032110240111004030043155443522233113242534443312241445211112450323031312112213000023232100
-    000123222130133422212242344055134444215311551422533215421415442551425225432130430124043210211111310
-    220013001310041302023441034332322423241253523413533421512551432233114553552003013120121302130121320
-    103122021001324130041021443134551553414353255343356623553131221454542451225451442032131420112320101
-    012123121220242033212021343121244143344324534625253522262464534215422121222134240012234133102111220
-    330310331223230000003152443554413335326665536266322522652335566553114314142351411020403401413302112
-    033203120011110011132251145135331144533354253453463224233644324632453434135523253300131220303213123
-    320111230330142103134512313345346434643654336344264466663434525446644113511452351451422214014013322
-    001132233321313303345535112443242622242446334234425332545346556362543355243332135453212444110331303
-    112033313244310423153325243233225655536462366623456645652435535435325433454445524512423111021132122
-    313313043314211444453212142362452645555543222645663664243443432442223333565131234141351344321344102
-    131230133213133211232332525334634543566623665537334334547734623265434432455254451425235432443212211
-    033344041000113254352455455346236225633465644343664557364344535543336532242444234311533433344140212
-    213210413044552341333323656654354424366446744766744473434577534775255332236334522521333331002022121
-    223112203001555435245233523555243667443447767433564533557556755677732432236462355155425414244240300
-    031112340101154335334634566542526467535374465476634474475365364377737233444423444335143215320411041
-    010203132113252122424352345322745777347553756767766736766655557657446763326426264545545441510322304
-    321034434351253424555342636457546533636345766763737363536656637564757633453436366225532223151301123
-    140333103113245552456543556436376775537436555564765867677377566536736367466446544545111231522432042
-    344202325543255413523362252766476773354345756567775846446585764655346457333656245566142114252141442
-    300442033331415536626644654454735373634646576484854768867856765345656633644236246242335514321313432
-    422444251112412665556253554536437336675554766648744646768865576456545754676632532244262315154431312
-    202304543452455552253665657746647784558765457564785778845788767784833536336745445354462312521531440
-    443202253112536253525354345435633886668445868754667447674764886554756567546737654246334325241222041
-    444423415155442365223265743454556684558776766888858567565767784775755635475565754224462452335222241
-    344303321125225553466564654375755674684544768955877976656855558645744675543644552655335222244234041
-    300235531322254555657355344757787845684787759755989576658884775746464854347454745445252251123331200
-    202355355135453623555734775437867546864765789685787875887555685885564677653753475626332543431524440
-    123112125155234436477477667347767767746589595765887578895688659457644647637353775542533353231324344
-    410231223354354564265577744565557576558859695696978987776856795557766747576576743622336235154122541
-    144345221145432366464547578854445477995896778965569886979678656986544557875776343376245336222211154
-    041355524153432432536456778856655655586558689789676558987567866689878584574356765462664355555422315
-    043213424536224446535754387584686658555998969679778967988975666897764557557733673744622262412325233
-    101514245332544663477377677875765977975768579996797978899567698975768865784644537776543454651544223
-    055515332353232236436447686544477656596959996666689896787797795969665874555543664764442344265232243
-    222545542226664544634434558757485778565956766669899769668998978795896868888674777634532432531545351
-    434314333334362377634654477865886799965779778887799678789966958767788684856666356767346645644343444
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-    """;
-
-    #endregion
 }

Inputs/Day10.txt

@@ -0,0 +1,60 @@
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Inputs/Day11.txt

@@ -0,0 +1 @@
+0 7 6618216 26481 885 42 202642 8791

Inputs/Day12.txt

@@ -0,0 +1,140 @@
+MMNNPPPPGGGGAGGPPPPPPPPPZZZZZZZLLLLLLLEEEEEEEEEEEEEEEAAAAAAAAAAAAAAAAAAAAMMMMNNMMMMMMMMMMMMMMMMAARRRRRRRRRRRRRRRRRRHHHHHHHHHHHHHAAAAAAAAAAAA
+MNNNPNPPGGGGGGGPPPPPPPEPZZZZZZZLLLLLLLWWEEEEEEEEEEEEEAPAAAAAAAAAAAAAAAAAAMMMMMMMMMMMMMMMMMMMAMMAARRRRRRRRRRRRRRRRQRHHHHHHQHHHHHHHWAAAAAAAAAA
+NNNNNNNPGGGGGGGGPPPPPPPZZZZZZZZZLLLLLLLEEEEEEEEEEEEEEPPPPAAAAAAAAAAAAAAMMMMMMMMMMMMMMMMMMMMMAAAAAAAAAVRRRRRRRRRQQQQHHQQHQQQHQHHHHWWWWAAAAAAA
+NNNNNNNNGGGGGGGPPPPPPPPPZZZZZZLLLLLLLLLLEEEMEEEEEEEEEEPPPPAAAAAAAAAAAMMMMMMMMMMMMMMMMMMMMMMMMAAAAAAVVVVRRRRRRRQQQQXQQQQQQQQQQQQHHHWWWWWAAAAA
+NNNNNNNYYGGGGGGPPPPPPPPPZZZZZZZLLLLLLLLMMMMMEEEEEEEEEPPPPPPAAAAAHAAAAMMMMMMMMMMMMMMMMMMMMMMMMMMAVVVVVVVRRRRRQQQQQQQQQQQQQQQQQQQHHWWWWAAAAAAA
+NNNNNNNXYYYCCCIPPPWZPPPPPZZZZZZLLLLLLLSSMMSSEEEEEEEPPPPPPPPPPAAHHAAAAHMMMMMMMMMMWWMMMMMMMMMMMMMMMDDVVVVRRRRRRQQQQQQQQQQQQQQQQQQHHWWWWWAWAAAA
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+NNNXXXXXXCCCCCCXPZPZZZPZZZZZZZZZZSSSSSSSSSSSEEEEEEEEPPPPPUUXXXHAHHHAHHHMMTMMMTMMMMTTTMMMMMMMMMDDDDDVIIIRIIMMMIMZQQQHTHQQQQQQQQQQAAWWWWWWWWAA
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+NNNNNNNNNNNNCCCCCBBMZZZUUUUUUUUUUSSSSSSSSOOOOBBPPPPFPPPPPPPPPPXHHHHHHHHTTPTTMMMTTTTUTUUUUUUUVVVVVVVAAAIIIIIITTTTTGGGGGGGGQFFWWWWWWUUUUUUUUUU
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+NNNNNNNWCCCCCCCBBBBBBCCCCCUUUUUUSSSSSRRRROROOOBBBBBBBBBBPPBBBBHSSSSSSSPPPPPMMMMMTTUUUUUUUUUUUVVVVVVVVVVVVXIITTTGGGGGGGFFFFFFSSKWUUUUUUUUUUUU
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+WWWWWWWWWWWWCCCCCCCCCCCCCCIIIIGGGGGGGWGGGVVRRRRRRRXXXXXXKKKKKBBBPPBPPRPPPPPSSSSSSVVVVVVVVVVVAFFFFFFFFFHHHHIBBBBBRRRRMMMMMMSKKKKKKKKVVUUUUUUU
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+OOAAAAAAAAUOOOOOOLLLLIIIIIIIURRRRRRRRRXXLLLLXXXXXRXXXXXXRRMBBBBPBPPPPBBTPBBBBEEEEEEEEVEEEEEEEEEEFQQQQHHHHHHHHHMMMMMMMMMMMMMMMMMKKKKUUUUUUUUU
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+AAAAAAAAAAAOOOOOEEELLLIYYVRRRRRRUUUUXXXLLLLLXXXXXRRRRXXXRMRBBBBJKJUBBBBBBBBBBBCEEEECEEEEEEEEEEEEQQQQQQHHHHHHHHHMMMMMMMMMMMMMMMWDDDWUUUUUUUUU
+AAAAAAAAAAAOOOOOUULLLYYYRRRRRRRRUUUUXXXXLLLLXXXXXXXXXXXXXMMCCBLJJJUBBBBBBBBBBQCCCCCCEEEEEEEEEEEEEFQQQHHHHHHHHMMMMMMMMMMMMMMMMWWWWWWWUUUUUUUU
+AAAAAAAAAAROOOOORRRRRRRRRRRYYDUUUUXXXXXXXLLLXXXXXXXXXXXXXCCCCCJJJJUUUUUBBBBCCCCCCCCCCEEEEEEEEEEEEEQQQEEHHHHHHHMMMMMMMMMDDDDDMWWWWWWUUUUUUUUU
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+ZZZAAAAOOOOOOOOORRRRRRRRRRRYDUUOUUUAXXXXXAAAALRRXXXXXXXXXCCCCCCCJJJJJLLLLLLLLLCCCCCCEEEEEEEESEEEEEEEEEEEEEHHHMMHMMMMDDDDDDDWWWWWWWWWWWWWWUUU
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+PYYYYYYYYYYYYOOOOOOEEEEEEEIICCCCCCCCCCCCCQQQQQQQQYYYYYYYYYYCCCICKITOOOOOHHHFFFFFFFFFFFFFBBBBBBBBBQQQQQQQQQQQQQJQJJJOQQQQOQQQQQQQQQQHHHHWWWHH
+PYYYYYYYYYYYYOOOOOOEEEEEIIIICCCCCCCCCCCCCQQQQQQQQYYYYYYYYZYSCCIIKIIOOOOOHHFFFFFFFFFFFFFFFFBBBBBBBBQQQQQQQQQQQQJJJJOOOQQQOQQQQQQQQQHHHHHHWWHH
+PYYYYYYYYYYYYOOOOOOEEIIIIIIICCCCCCCCCCCCCQQQQQQYYYYYYYYYYYYIIIIIIIIOOOOOHHFFFFFFFFFFFFFFFBBBBBBBBBQCQQQQQQQQXXXJJKKOOQQQQQQQQQQQQQHHHHHHHHHH
+PPPPYYYYYYYYYOOOOOOIEIIIIZZZCCCCCCCCCCCCCQQQQQQQPYYYYYYYYBYBIIIIIIIOOOOOIHHFFFFFFFFFFFFFFBBBBBBBBBBQQQQQQQQQXXXKKKKKKKKKKKQQQQQHHHHHHHHHHHHH
+PPPYYYYYYYYYYOOOOOOIIIIIIZZZCCCCCCCCCCCCCQQQQQQPPPYYYYYYYBBBIIIIIIIOOOJJIIFFFFFFFFFFFRFFFBBBBBBBBBBBQQQQQQQQXXXKKKKKKKKKKKQQQQQHHHHHHHHHHHHH
+PPPPPYYYYYYYYOOOOOOIIIIIIZZZCCCCCCCCCCCCCMQQQQQQQYYYYYYYYYYBBIIIIIIOOOOOOFFFFFFFFFFRRRFBBBBBBBBBBBBBBBQQQQQQQXKKKKKKKKKKKKQQQKQKHHHHHHHHHHHH
+PPPPPYYYYYYYYIIIIIIIIIIIIIZZCCCCCCCCCCCCCCCCCCCCCGGYYYYYBBBBIIIIEEIIOOOOODFFFFFFVBBRRRRBBBBBBBBBBBBBWBQQQQQQQQIIIKKKIKKKKKKKKKKKDDDDDDHHHHHH
+PPPPYYYYYYYYYIIIICIIIIIIIIIZCCCCCCCCCCCCCCCCCCCCCGGYYBBBBBBIIIEEEEEEOOOOOFFFFFFBBBBBRRBBBBBBBBBBBBBBWWWWQQQQPQIIIIIIIKKKKKKKKKKKKKDDDDHHHHHH
+PPPYYYYYYYYYYICIICCIIIIIIIZCCCCCCCCZZZCCCCCCCCCCCYYYYBBBBBBBIIEEEEEEOOOOOEEFFFFCBBBBRRBBBBBBBBBWWWWWWWWWQWWIIIIIIIIIPIKKKKKKKKKKKKDDDDDHHHHH
+PPPPYYYYYYYZYZCCCCIIIIIIIIZZCCCCCCCZZZCCCCCCCAQQAGLYBBBBBBBBBBEEEEEEOOOOOEEEFFWBBBBBBBBBBBBBBBBBWWWWWWWWWWIIIIIIIIIIIIIKKKKKKKKKKDDDDDDDDHHH
+PPPPYYJJYZZZZZCCCCIIIIIIIIIFZZZZZZZZZZCCCCCCCAAAAGGGGGGBBBBBBBEEEEEEOOOOOEEEEFWWBBBBBKKBKKBBBBBWWWWWWWWWWWWIIIIIIIIIIIKKKKKKKKKKKDDDDDDHHHHH
+PPZPPYJJYZZZZZZCCCCIIIIIFIIFFBFFZZZZAACCCCCCCAGAGGGGGGGGGBBBBEEEEEEEOOOOOEEEEWWHZZZBBWKKKKKBBWWWWWWWWWWAWWWWIIIIIFIIIIKKKKKKKPKKKDDDDNDHHHHH
+ZPPPPPZZZZZZZZZCCCCCCUIIFIIFFFFOOZZZAAACCCCCAAGGGGGGGGGGBBBBBEEEEEEEOOOOOEEEXHHHZWWWWWKWWKKWWWWWWWWWWWAAAWWWIIIIIFFIKKKFFFKPKPKKKKDDDDHHHHHH
+ZZZPZZZZZZZZZZZCIIRCUUUIFFFFFFFOFBZAAAACCCCCAAGGGGGGGGGGGGBEEEBEEEEEDEDDEEEEXHHHHHHWWWWWKKKKWWWWWWWWWWAAARRWIIIIFFFIFKFFFFPPPPKKKKKPHHHHHHHH
+ZZZZZZZZZZZZZZZIIIIIUUUFFFFFFFFFFZZZNANCCCCCAGGGGGGGGGGGGGBBBBBEEDDDDDDDDEEEEEHHHHHWWWWWWKWWWGWWWWWWWWAAARRRIIIIFFFFFFFFFFFPPPKPKKKPPPHHHHHH
+ZZZZZFZZZZZSSZZRIIIIUUUFFFFFFFFFFFFFNNNCCCCCGGGGGGGGGGGGGBBBBBBBDDDDDDDDDDEEEEHHHHWWWWWWWWWWWWWWWWWWAAAAARRRIIIIIFFGFFFFFFFFPPPPKPPPPPPHHHHH
+FFFFFFZZZZZZSSSIIIIIUUUUUUUFFFFFFFWNNNNNNANGGGGGGGGGGGGGBBBBBBBBDDDDDDDDDDDDEHHHHHWWWWWWWWWWWWWWWWWWAAARRRRRIRIIFFFFFFFFFFFWPPPPPPPPPPPHHHHH
+GFFFFFLZZZXZSSSSSSSIUUUUUUUFFFFFFFFFNNNNNNNNNGGGGGGGGGBBBBBBBDBDDDDDDDDDDDDDHHHHHHWWWWWWWWWWWWJJJWAAAARRRRRRRRRIFFFFFFFFFFFWWPPPPPPPPPPPHHHH
+GFFFFFFFFZFQFSSSSSSUUUUUUUUUFFFFFLFYNNNNNNNNGGGGGGGGGGBBBBBBBDBDDDDDDDDDDDDDHHHHHHHWWWWWWWWWWWWWJAAAARRRRRRRRRRQFFFFFFFFFFFFWPPWWPPPPPPPHHHH
+GGFFFFFFFFFFFSSSSSSUUUUUUUUUUFFFZNNNNNNNNNNNUUUGGGGGHIIBBBBBDDDDDDDDDDDDDDDDHHHHHHHWWWWWWWWWWWWUAAAAAAIRRRRRRRQQFFQRFFFFFFFFWWWWWPPPPPPUIISS
+FFFFFFFFFFFFIFSSIIIIUUUUUUUUFFFFINNNNNNNNNNNNNUGGGGIIIIIIIIIDDDDDDDDDDDDDDDHHHHHHHHWWWWWWWWWWWWWCACCCQQQRRRQQQQQQFFRCFFRRFFWWWWWWPPPPPPUUIIS
+QQQFFFFFFFFFIFIIIIIIUIUUUUUUUIIIIIINNNNNNNNBNNUUGGGIIIIIIIIIDDDDDDDDDDDDDOEHEHHHHHHWWWWWWWWWWSWCCAACQQQQQQQQQQQQQQQRRRRRRRRWWWWWWPPPPPPPPIIS
+QQQQFQFFFFFFFFPIIIIIIIUUUUIIIIIIIIINNNNNNNNNNUUUUUIIIIIIIIIIAADDLDDDDDDDDOEEEHHHHHWWWWWWWWWWHHCCCCCCQQQQQQQQQQTTQQRRRRRRRRRWWWWPPPPPPPPPIIIS
+KQQQQQFFFFFFFFFIIIIIIIUUUUIIIIIIIIINNNNNNNNNNUUUUUUIIIIIIIIIADDDLDDDDXXEEEEEEHHHHHHHWWRQQQHHHHCCCCCQQQQQQQQQQTTTTTRRRRRRRRRRPPPPWPPPPPPIIIII
+KKKQSSSSFFFFFFFIIIIIIIUIIIIIIIIVIIIVVVNNNNNNNNUNUUUIIIIIIIIDDDDDLDXDDXXEEEEEEEHHHHHHWRRQQQHHHHCCCCCQQQQQQQQQQTTTTRRRRRRRRRSSSPPPPPPPPIIIIIII
+SKVSSKSSALLLNLLRIIIIIIIIIIIIIIIVVVVVNNNNNNNNNNNNUUUIIIIIWWDDDDDDDDXXXXXEEEEEEEEHHHHHHRRQQQHHHHHHHCCCQQQQQQQQQTTTTRYRRRRRRRSSSSSSPPPPPIIIIIII
+SSSSSSSSLLLLLLLRIIIIIIIIIIIIIIIVVVVVVVNVNNNNNNNUUUUIIIIIDDDDDDDDDDDXDXXEEEEEEEESAHHHHRRQQQQQHHHHHHHHHHHQQQQQQTTTTYYYRRRRRRSSSLLLPPPIIIIIIIIW
+SSSSSSSSLLLLLLLLIIIIIIIIIIIIIVVVVVVVVVVVNNNNNNNNNUUIIILDDDDDDDDDDDDDDDDEEEEEESSSSQQIFFFFFFFFUHZHHHHHNNHQQTQTTTTTTYYYYRRVLLLLLLLLBIIIIIIIIIIW
+WWWSSSSSLLLLLLLLINNIIIIIIIIIVYVVVVVVVVVVNNNNNNNNUUUUUUUBBDVDDGDDDDDEEEDEEEEESSSSSQQQFFFFFFFFQZZZZHHHHNNNTTTTTTTTYYYYYRRLLLLLLLLLBBIIIIIIIIIW
+WWSSSSSSSSLLLLLNISNIIIIIIIIIVVVVVVVVVVVVVNNANNNNNUUUUUULLMLDDGGDDDDEEEEEESSSSSSSQQQQFFFFFFFFQQZZHHHNNNNTTTTTTTTHHYSYYYYLLLLLLLLLBIIIIIIIIIII
+WWWSSSSSSSSSSSNNNNNNIIIIIVVVVVVVVVVVVVVVAAAANNNNNUUUUUUULLLDDDLLDDDDEEEEESSSSSSSSSQQFFFFFFFFFFFZZZHNNNNTTTTTTTTHYYYYYYYLLLLLLLLLBIIIIIIIIIIX
+WWWSSSSSSSSSSSNNNNNIIIIIIVVVVVVVVVVVVVVVAAANNNNTTTUUUUULLLLLLLLNDDDDMEESSSSSSSSSSQQQFFFFFFFFFFFZJJJJNNNNNTTTTFFFFYYYYYYLLLLLLLLLLLBIXIIIIIXX
+WZWZSSSSSSSSSSNNNNNNIIIIIVIVVVVVVVVVVVVVAAAAANNTUUUULLLLLLLLLLLLQDLDEEESSSSSSSSSSQQQFFFFFFFFFFFJJJJNNNFFNTTTTFFFFKKYYYYRLLLLLLLLTTTIIHHIIMMX
+ZZZZSSSSSSSSNNNNNNNNIIIIIIIIVVVVVVVVVVVVAAAAETTTQUUUULLLLLLLLLLLLWLLEEESSSSSSSSSSQQQFFFFFFFFFFFJJJJJJJFFFFFFFFFFKKKYYYRRRLLLLLTTTTTHHHHIMMMM
+ZZZZSSSSSCCCNNNNNNNNNIIIIIIIVIVVVVVVVVAAAAAEETTTQQUUULLLLLLLLLLLLLLLEESSSSSSSSSSSQSQFFFFFFFFFFFFFFFJJWFFFFFFFFFFKKKKYRRRRRLLLLTSTTTTHHHHMMMM
+ZZZZSSSCCCCCYNNNNNNNNIIIIIIIIIVVVVVVAAAAAEEEETTQQQUUULLLLLLLLLLLLLLLEEQSSSSSSSSSSSSQFFFFFFFFFFFFFFFJJFFFFFFFFFFKKKKKKRRRRRLLLLTTTUTTTHMMMMMM
+ZZKKCCCCCCCCCCNNNNNNIIIIIIIIIIIIRVVVVAAAAAEEEEEEEQUQLLQLLLLSSSSLLQQLQQQSSSSSSSSSSSSCFFFFFFFFFFFFFFFTJTFFFFFFFFPFKKKKKKRRRLLLLLLLTUTTTHHMMMMM
+KKKKCCCCCCCCCCNNNNNNIIIIIIIIIIIIIIAAAAAEEEEEEEEEEQQQQQQLLLLLESSSSQQLQQQSSSSSSSSSSSSSFFFFFFFFFFFFFFFTTTTFFFFFFFFFFKKKRRRRRRLLLLLLTTTTTTHHMMMM
+UKKKCCCCCCCCCNNRYYIIIIIIIIIIIIIIIIAAAAAEOEEEEEEEEEQQQLLLLLLLESSSQQQQQQQQSSSVSSSSSSSJFFFFFFFFFFFFFFFTTFFFFFFFFFFFKKKKKRRRRRLLLLLLLLTTTTHHMMMM
+UKKCCCCCCCCCCCNCYYIIIIIIIIIIIIIIIIAABAAAEEEEEEEEEQQQQQLLLLLLEEQQQQQQQQQQSSVVSSSSSSSSFFFFFFFFFFFFNNNNTNNFFFFFFZKKKKKKKRRRRLLLLLLLLLTTTTHHMMMM
+UKKCCCCCCCCCCCCCYYIIIIYYYYYIIIIIAAABBBBEEEEEEEEEQQQQSSLLLESSEQKQQQQQQQQQSVVVVSSSSPPSFFFFFFFFFFFFNNNNANNNFFFFFFKKKKKKKIIRILBULLLLLLTTMMMMMMMM
+UKKKCCCCCCCCCCYYYYYIIIYHYYYYYYIAAAABBBBBEEEEEEQQQQQQSSSSSSSSEQQQQQQQQQQQQQVVQPPPPPSSSYFFFFFFFFFFNNNNNNNNNNFFFFKKKKKKKIIIIIUUUULUTTTTTTMMMMMM
+UUKKKCCCCCCCCYYYYYYIYIIHHHYAAAIAAAABBBBBBEEEEEEESSSSSSSSLLSSQQQQQQQQQQQQQQQQQPPPPPSYYYYJFFFFFFFFNNNNNNNGNMMMFFKKKKKKIIIIIIUUUUUUUTTTTMMMMMMM
+UKKCCCCPCCCSSYYYYYYYYYYHHFAACAAAAAAABBBBBEEEDDSSSSSSSSSSLSSSHVQQQQQQQQQQQQQQQQQPPPYYYYEEEEEJJJJNENENNNNNNMMMMFKKKKKKIIIIUUUUUUUUUTUTMMMMGMMM
+UKKKKKCCCCCYYYYYYYYYYYYHHHAAAAAAABBBBBBBBEEBSSSSSSSSSSSSSSSHHVQQQQQQQQQQQQQQQQQPPPYYYYYEEEEEEEEEENENNNNNNMMMMMKKKKKKIEEIIUUUUUUUUUUUDMMMGMMZ
+UKKKKKKKCCCAAAYYYYYYYYYHHHTAAAAAAAABBBBBBBBBBBBSSSSSSSSSSSSVVVQQQQQQQQQQQQQQQXXPPYYYYYYHEEEEEMEEEEEENNNNNMMMMKKKKKIIIEEEEUUUUUUUUUUUMMMMMMMZ
+KKKKKKKKTTCCCYYYYYYYYYHHHAAAAAAAAAJJBBBBBBBBBBBBSSSSSSSSSSSSVVQQQQQQQQQQQMQDQXXPYYYYYYEEEEEEEEEEEEEENNNNMMMMMMMMKKEIEEEEEEEPUUUUUMMMMMMMMZZZ
+KKKKKKKTTTMMKBYYYYYYYYHHHHHAAAAAAAJJBBBBBBBBBBSSSSSSSSSSSSSVVVVVQQQWQQQQMMXDQXXPYYYYYYYYEEEEEEEEEEEENNMMMMMMMMMKKKEEEEEEEEEEUUZUIMMMMMMMMZZZ
+KKKKKKTTTTTMKKYYYYHHHHHHHHHUAAAAAAJJBBBBBWWBBSSSSSSSSSSSSSVVVVVVQTQWQMMMMMXXQXXXXYYYYYEEEEEEEEEEEEEENNNNMMMMMMMKRKEEEEEEEEEEUZZZMMMMZMMMZZZZ
+KKTTTTTTTTTTKKYYKKKKKHBHHHHZLAAAAAAJJBBBNWWWRWWSSSSSSSSVVVVVVVVVVVVVQMMMMXXXXXXXPXXYYYYYEEEEEEEEEEENNNNNMWMMMMSSRRREEEEEEEEZZZZZZMMMZMMMMZZZ
+KKTTTTTTTTTTKKKKKTKKKHBHHNZZLLLAAAJJJJBJWWIWWWWWSSSSSSSVVVVVVVVVVVVMMMMMMXXXXXXXXXXXYYYYEEEEEEEEEEEEEWWWMWWMMMSSRSSSEEEEEEEEZZZZZZMZZZMZZZZZ
+TTTTTTTTTTTTJTTTTTTKKKKHHHZZZZLAAAAAAJJJJWWWWMMMMSSSSSVVVVVVVVVVVVVMMMMXXXXXXXXXXXXXYYYYYYEEEEEEEOWWNWWWWWWWWMSSSSSQESEEEEEEZZZZZZZZZZZZZZII
+TTTTTTTTTTTTTTTTTTTKKKKKHHZZZAAAAAAJJJJJWWWWWMMMMSSSSSSVVVVVVVVVVVVVMMMMXXXXXXXXXXXXYYYYYIIIIEIHEOWWWWWWWWWMMMSSSSSSSSSEEEEEYYZZZZZZZZZZZIII
+TTTTTTTTTTTTLTTTTTTKKKKKKKKKAAAAAAAAAJJJJJWWWMMMMSSSSSSSVVVVVVVVVVVVVMMXXXXXXXXXXXXXXYYYIIIIIIIWWWWWWWWWWWWMMMSSSSSSSSSEEEDEYYYYZZZIIIIIZIII
+TTTTTTTTTTTTTTTTTTTKKKKKKKKAAAAAAAAAJJJJWWWWWMMMMSSSVSSVVVVVVVNVVNNNVMMXXXXXXXXXCXYXXYYIIIIIIIIIWWWWWWWWWWWWMMMSSSSSSSSEEYDYYZZZZZIIIIIIIIII
+TTTTTTTTTTTTTTTTTTTTTKKKKKKAAAAAAAAAWWWWWWWWWMMMMCVVVVVVVVVVVNNNNNNNXNNXXXXXXXXXYYYYYYYIIIIIIIIIGWWWWWWWWWWWMMSSSSSSSSSYYYYYYKKZZIIIIIIIIIII
+TTTTTTTTTTTTTTTTTTTTTKKKKKKKKAAAAAAAWWWWWWWWWMMMMCVVVTVVVVVVVNNNNNNNNNNKKXXXXXXXYYYYYYIIIIIIIIIIWWWWWWWWWWWWSSSSSSSSSSSZZYYYYYYZJIIIIIIIIIII
+TTTTTTTTJTTTTTTTTTTTTTYKKKKKKAAAAAAAWWWWWWWWWMMMMWVVVTVVVNVVNNNNNNNNNNNNKXXXXXYYYYYYYYYYIIIIIIIIWWWWWWWWWWWWSSBSSSSSSZSZZZYZYYZZIIIIIIIIIIII
+ZTZTTTTTTTTYYTTTTTTTAAYKKKKKKAAAAAAWWWWWWWWWWMMMMMMMMMMMMMVVNNNNNNNNNNKKKXXXKKYYYYYYYYYIIIIIIIIIIIWWWWWWWWWWSASSSSQSZZZZZZYZYZZZZIIIIIIIIIII
+ZTZTTTAYYYYYYTTTTTTTTYYYYTTAAAAAAAAWWWWWWWWWWMMMMMMMMMMMMMNNNNNNNNNNNNNKKKKKKKKYYYYYYYYKIIIIIIIIIIWWWWWWWWNWAASSSSSSZZZZZZYZZZZZZIIIIDIIIIII
+ZZZZTHAAAYYAYYTTTTTTTTYYYYYUUAAAAAAUWWWWWWWWWMMMMMMMMMMMMMNNNNNNNNNNNNNKKKKKKKKYYYYYYYKKKIIIIIIIIIWWWWWGNNNNNNSQSSZZZZZZZZZZZZZZZZIIDDIIIIII
+ZZZZZZAAAAYAYYYYTTTTTTYYUUUUUUAUUUUUWWWWWWWWWMMMMMMMMMMMMMNNCNNNNNNNNKKKKKIIIKIIIYYYYYYYKIIIIIIIIWWWWWWWNNNNNNPPSSPPZZZZZZZZZZZZZZZDDDIIIIII
+ZZZZZAAAAAAAAAYTTTTTYYYYYUUUUUAUUUDUWWWWWDWWWMMMMMMMMMMMMMNNNNNNNNNNNKKKKIIIIIIIIIRYYYYKKIIIIIIIINWUWIWNNNNNNNNPPPPPZZZZZZZZZZZZZZDDDDDIIIII
+ZZZZZAAAAAAAAAAANTTTTYYYYYUUUUUUUDNNNNDDDDWWDMMMMMMMMMMMMMTTNNNNNNNNNKKKKIIIIIIIIIIIYYKKKKIIIIIINNNNIIIINNNNNNPPPPPPPPZZZZZZZZZZZZDDDDDDIIII
+ZZZZZAAAAAAAAAAAAJJTTYYYYUUUUUUUAAAAAAAAADDDDMMMMMMMMMMMMMTTNXXXNNNNRKKKKKIIIIIIIIIIJYYKKKKIIIINNNNNXXXIINNJJNPPPPPPPZZZZZZZZZZZZDDDDDDDDIII
+ZZZZZAAAAAAAAAAAAYYYYYYYYUYYUUUUAAAAAAAAAAADDMMMMMTTTTTTTTTMMXXXXNNNRRKKRROIIIIIIIBBYYYKGKIIIINNNNNNXXXXNNJJJNPPPPPPPZZZZZZZZZZZDDDDDDDDDDII
+ZZZZZAAAAAAAAAAAAAYYYYYYYYYYUUULAAAAAAAAAAADRMMMMMMTTXXTXTTTPPXVVNNNRRRKRIIIIIIIIIBGGGGGGKIIIBNNNNNXXXXXXNNJXNPPPPPPPPPPPPSSZSSZSDDDDDDDDDII
+ZZZZZAAAAAAAAAAAAAAAYYYYYYYLLLLLUDNNNNNAAAADURRRRMMTTTXXXTMTBPPPPPRRRRRRRRIIIIIIIIBGGGGGKKKIIBBNNNXXXXXXXXXXXPPPPPPPPPPPSYSSSSSSSUDSDSDDIIII
+ZZZZAAAAAAAAAAAAAAAAYYYYYYYYLLLLLDNNNNNAAAADURRRRRMTTXXXTTTPPPPPPPVRRRRRRRRLIIIIIIIGGGGGKKNYIBBNNNNEXXXXXXXXXPPPPPPPPPPSSSSSSSSSSUDSSSIIIIII
+ZZZZZAAAAAAAAAAAAAAXYYYYYYYYYLNNNNNNNNNAAAARRRRRRRRRXXXXXTTPPPPPPRRRRRRRRRRLLIIIIIIGGGGKKNNYNNNLNNNXXXXXXXXXXPPPPPPPPPPPPSSSSSSZZZZZIIIIIIII
+ZZZZZAAAAAAAAAABBBAXYYYYYYYYLLNNNNNNNNNAAAAAAARRRRRRRXXXXPPPPPPPPRRRRRRRRRRLLIIIINIGGGSKSXNNNNNNNKKXXXXXXXXXXPPPPPPPPPPPKSSSSSSZZZZZZIIIIIII
+ZZZZZZZZEAAAABBBBYYYYYYYYYYLLLNNNNNNNNNAAAAAAARRRRRXXXXXXXPPPPPPPRRRRRLMRRLLLLLIINNGGSSSSSNNNNNNKKKXXXXXXXXXXPPPPPPPPPPSKSSSSSSZZZHHHLIIZIIU
+ZZZZZZZZEEEEAABBYYYYYYYYYLLLLLNNNNNNNNNAAAAAAARRRRRXXXXXXXXPPPPPPRRRRRLLLLLLLLLLLLLLLLSSSANNNNNNNKKXXXXXXXXXPPPPPPPPPPPSSSSSSSSZZHHHHHHIHHIH
+ZZZZZZZEEEEEEBBBYYYYYYYYYLLYRLNNNNNNNNJAAAAAAARRXXRXXXXXXXXXPPPPPRRRRRRRLLLLLLLLLLLLOSSSSANNNNKKKKKKKKXXXXXPPPQQPPPPPIISSSISSSSSZHHHHHHHHHHH
+ZZZZZZEEEEEEGGBBYYYYYYYYYYYYRRNNNNNNAAAAAAAAAAXXXXXXXXXXXXXXXXPPPPRRRRRRRLLLLLLLLLLLLRRNNNNNNNNKKKKKKXXXXKKPPPQQQPPPPIIIIWISSBSSSSSHHHHHHHHH
+ZZZZZZEEEEEEGYYYYYYYYYYYYYYYRRNNNNNNAAAAAAAJRXXXXXXXXXXXXXXXXXPPPRRRRRLRRLLLLLLLLLLLLLLKNNNNNNNNKKKKKKKKXKPPPQQQQQQQPIIIIIIIIBSSSHHHHHHHHHHH
+ZZZEEEIEEEGGGGGYYYYYYYYYYYYYRYYRRJJJAAAAAAAWXXXXXXXXXXXXXXXXXXXPPRRRRRLLRLLLLLLLLLLLLLKKNNNNNNNNKKKKKKKKKKKQQLQQQQQQPIIIIIIIIBBBSHHHHHHHHHHH
+ZZZZZEEEEEGGGGGYYYYYYYKKKKYYYYYRRRJJAAAAAAAAAAXXXXXXXXXXXXXXXXJPRRRRROOLLLLLLLLLLLLLKKKKKNNSNNKKKKKKKKKKKEEQQQQQQQQQQIIIIIIIIIIIIHHHHHHHHHHH
+ZZZZZEEEEEZZGGGGYGYYYYKKKKKKKKRRRRJJAAAAAAAAAAQNNXXXXXXXXXXXBXJPBRRROOOOOQQQQLLLLLLKKKKKKNNNNNKKKKKKKEEEKEEEQQQQQQQQQIIIIIIIIIIIIIIHHHHHHHHH
+ZZZZZZZEZZZZZZGGGGGGGYKKKKKKKRRRRJJJJJJJAAAAAAQNNXXXXXXXXXXXBBBBBBBOOOOOOOOQLLLLLLQKKKKKKKKKKKKKKKKKKKEEEEEEQEQQQQQIIIIIIIIIIIIIIIHHHHHHHHHH
+ZNZZZZZZZZZZZZZGGGGGGKKNKKKKKKRRRRJNNNNNAAAAAANNNNXXXXXXXBXBBBBBBBAOOOOOOOOQLLLLLQQQKKKKKKKKBKKKKBKKKEEEEEEEEEEQQQQIIIIIIIIIIIIIIIHHHHHHHHHH
+NNZZZZZZZZZZZZZZGGGGKKKKKKKKKKKKNNNNNNNNAAAAAANNNNSSSSSBXBBBBBBBBBOOOOOOOQQQQQLLQQQQQKKBKKKBBBBBBBBKEEEEEEEEEEEQQQQIIIIIIIIIIIIIDIHHHHHHHHHH
+NNNNZZZZZZZZZZZZGGGGKKKKKKKKKKKNNNNNNNNNNNNNNNNNNNSSSSBBBBBBBBBBBBOOOOOOOQQQQQQQQQQQQKKBKKKBBBBBBBBBMEEEEEEEEEEQQQQIIIIIIIIIIIIIDHHHHHHHHHHQ
+NNNNZZZZZZZZZGGGGGGGKKKKKKKKKKKNNNNNNNNNNNNNNNNNNNSSSSBBBBBBBBBBBBIOOOOOOOQQQQQQQQQQKKKBBBBBBBBBBLBEEEEEEEEEEEEQQQQIIIIIIIIIIIIIDHHHHHHHHHHH
+NNNNNNNNZZZZZGGGGGKKKKKKKKKKKKKNNNNNNNNNNNNNNNNNNXSSSSBBBBBBBBBBBBIOOOOOOOOOQQQQQQQQQBBBBBBBBBBBBEEEEEEEEEEDEQQQPQQFSSIIIIIIISIIDDHHHHEHHHDD
+NNNNNNNNNZZZGGGGGGGKGKQKKKKKKKXNNNNNNNNNNNNNNNRNSXSSSBBBBBBBBBBBBBIIIIIOOOLQQQQQQQQQOBBBBBBBBBBBBEEEEEEEEEEDEFQQPQFFSSIIIIIISSSSDDDHHEHHHHDD
+NNNNNNNNNZNNGGGGGGGGGKKKKKKKKXXNNNNNNNNNNNNNNNSSSXXSSSBBSBBBBBBBBBBBBIIOOOQQQQQQQQQQQBBBBBBBBBBBBBEEEEEEDDDDFFQQQFFFSSSSSSSIISSSSSDDDHHHDHDD
+QNNNNNNNNNNGGGGGGGGGGKGGKKKKKKXXNNNNNNNNNNNNSSSSSXSZSSZBBBBBBBBBBBBBBIIIOIQQQQQQQQQQKBBBBBBBBBBBBBBDDEEDDDDDFQQFFFSSSSSSSSSSSSSSSSDDDDDDDDDD
+NNNNNNNNNNNNNGGGGGGGGGGGKKIKKXXXXNNNNNNNSNSSSSSSSSSZSZZZZZBBBBBBBBBBBBIIOIIIQQQQQQABBBBBBBBBBBBBBBBBDDEEDDDFFFFFFFSFSSSSSSSSSSSSSDDDDDDDDDDD
+NNNNNNNNNPNGGGGGGGGGGGGGGKKXXXXXXNNNNSSSSSSSSSSSSSSZZZZZZZBBBBBBBBBBBIIIIIQQQQQQQQQBBBBBBBBBBBBBBBDDDDDDDDDFFFFFFFFFSSSSSSSSSSSSDDDDDDDDDDDD

Inputs/Day14.txt

@@ -0,0 +1,500 @@
+p=84,26 v=99,-23
+p=98,17 v=-41,-46
+p=3,84 v=-17,-23
+p=92,66 v=36,-4
+p=16,102 v=95,-60
+p=14,90 v=-71,-62
+p=26,29 v=91,-20
+p=74,36 v=67,30
+p=59,66 v=86,-4
+p=32,47 v=-79,7
+p=82,42 v=3,-84
+p=61,16 v=28,34
+p=82,9 v=-84,-78
+p=5,71 v=16,84
+p=15,79 v=-48,75
+p=76,92 v=-32,68
+p=43,93 v=54,78
+p=22,73 v=-49,68
+p=79,13 v=-78,-55
+p=61,17 v=1,90
+p=71,58 v=-73,16
+p=60,63 v=-31,87
+p=8,41 v=-17,-96
+p=13,51 v=-16,-51
+p=86,15 v=12,-65
+p=35,71 v=57,3
+p=77,81 v=89,86
+p=100,37 v=93,-84
+p=31,38 v=22,20
+p=9,98 v=99,-47
+p=29,21 v=72,-76
+p=67,99 v=76,-25
+p=62,67 v=54,78
+p=80,79 v=-1,91
+p=74,7 v=51,-42
+p=31,57 v=30,70
+p=7,74 v=57,-75
+p=49,29 v=-9,34
+p=27,70 v=-45,-54
+p=96,30 v=47,-77
+p=7,22 v=-65,52
+p=50,53 v=15,-1
+p=37,44 v=46,-96
+p=85,87 v=-10,-25
+p=91,8 v=47,-56
+p=96,11 v=-50,-67
+p=75,85 v=80,90
+p=51,72 v=41,79
+p=81,67 v=-93,-25
+p=78,51 v=65,-99
+p=94,21 v=15,38
+p=41,63 v=-77,89
+p=98,11 v=-52,31
+p=97,53 v=67,12
+p=10,93 v=78,-74
+p=13,23 v=53,40
+p=73,39 v=-11,58
+p=82,54 v=45,-39
+p=4,14 v=-52,60
+p=69,85 v=-93,86
+p=88,27 v=-98,-64
+p=54,88 v=50,-27
+p=53,84 v=-82,-15
+p=47,51 v=24,61
+p=100,94 v=-54,-52
+p=91,23 v=1,-66
+p=95,45 v=-42,7
+p=76,92 v=80,53
+p=29,0 v=13,-29
+p=38,46 v=40,2
+p=29,19 v=-24,-59
+p=4,53 v=-74,11
+p=77,87 v=45,-13
+p=75,12 v=-82,-52
+p=95,84 v=38,93
+p=52,52 v=20,17
+p=16,0 v=-83,51
+p=68,21 v=98,-72
+p=9,54 v=-76,20
+p=27,9 v=9,-55
+p=32,44 v=-11,-96
+p=90,59 v=67,6
+p=68,52 v=65,30
+p=71,44 v=-3,11
+p=6,14 v=16,44
+p=10,0 v=18,-40
+p=85,41 v=17,90
+p=15,4 v=-59,57
+p=44,65 v=2,97
+p=15,78 v=53,-48
+p=34,12 v=46,53
+p=43,45 v=86,-83
+p=76,52 v=-92,-81
+p=11,80 v=97,-24
+p=37,3 v=48,63
+p=1,54 v=49,-5
+p=45,61 v=-5,81
+p=71,63 v=87,95
+p=72,40 v=-83,32
+p=10,9 v=-83,47
+p=3,23 v=-10,-73
+p=84,1 v=85,52
+p=52,24 v=-18,36
+p=76,37 v=21,-84
+p=49,26 v=20,11
+p=66,54 v=30,-4
+p=24,66 v=-61,79
+p=34,22 v=41,-90
+p=43,6 v=-52,-66
+p=15,30 v=68,6
+p=72,74 v=-55,93
+p=35,25 v=24,-66
+p=80,21 v=56,36
+p=43,67 v=59,95
+p=61,39 v=-69,-88
+p=61,93 v=-66,65
+p=18,94 v=97,74
+p=4,43 v=13,-75
+p=13,62 v=-74,-91
+p=61,27 v=32,-59
+p=28,88 v=55,-19
+p=52,55 v=-94,-60
+p=83,37 v=46,97
+p=2,72 v=-52,-77
+p=35,31 v=-33,23
+p=75,73 v=30,-12
+p=55,7 v=87,-70
+p=48,52 v=-41,-22
+p=50,15 v=39,-54
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+v>>^vv>>>^v>v^^>vv^><^vv^^^<^^<^>>^<>><^^>v>vvv<>v><>>v<v<<^^^vv<v^^><vvv<v<<<<^>^>>><><^>^>^^^>>^^^<<v^v^>^^<>^v<^v<<>^^vv<^>v>v<<>v^<<>^><<>>vv>^<>vv>v>>><<^>^^>v<>>v^<^<^>vvv<>^v<^<<<^>^^v<vv<^><vv<>>^<^^v<^<<^<^^>vv^<>^<>>><^<<^v<v<>vvvv<^<^v<>>v<><vvvv^v^<v<<v>^^>^^v^vv<<^^v>v<^vv>^vv><vv<<>v>v<>vv<<<><v>vv<^<><^><<<>^><<<<^>v^v<>vv^^<v^>>>v>^><v>v^^<v<^v>v>><^^<>>v<>v>>^<<v<^vvvv<vvv>^<v^<vvv<v^>^^>>v^^^<<^<<>^^<>><v>^>>^>>^>>vv>v^<v>vv<><<>><<<>v>>vv^^>v<vvv<v>>><<><><v^^>^v<^<>v<<^><><^^>^>^^vv<^vv><v^^><<<<<<<<v<^<<^v^^^><>v>^^^<><^v>v<^v><<<<<><^vv>^v>v^<<>v^>v<^>^<>^<v^v^>v^v^<^<><>>^<<^vv<>>vv^v^^<^<v<v^v^><>^^<>^><>^^v<^v<<v^^<>^v<v^^v^v>v^>><^^<><>>^v><v>><<>v>>>>v<<<^v^^v<<<<^v<><^<^^<v<>>^^>>>v>v>>><^<vv^<<^vvv>^<>^v<<^^>v^<^<v>v><vv^<v>>^^<>^v^^^<>v^v>v^><><v<v>v<^v>^vv<>><>>^>v^^<v<<^^><<^<^^^v><<^><>>v<<<v<<>><v<><<v>><<<^^^^v^v>v<vv><^^>>^^v>v<<<^<<>^v>>>v^v^v<<v^v<<><><><^<v^>v<><<>><>^^^><v^>^v<v<vv>v^<^^>><^^^vv^>v^<<v^>^^v^v>>v><<<>vv^><>v<>>>v^^^vv<v<<>>>>v<><^
+<vvv>v>v>>^v^<<<>>><>><<<^v^v>^^<v><vv>>^v<^<<>>^^^^v^><^^^v>v^vv^v<>>v>>>><v>^vv<<v<v<>>vvv^<>vvvv^>><<>^^<<^><><^<>v<^<<<v^>>^>^<<^^>>>^^v^vv>^><vvv^vv>><><>>^<v>>^v<>>><>v^v<vvvv<v^vvv^^^<^<^>v<>^v>><v>^^>^<v^<<v>v^>^v^^>vv<v^<><^<^<^<^>v<<<>>>v^v<^v<<<>^<<v^<>>>v><>>v<>>^><^>>v<^>v>v<><vv^<^^vv><^^v<v>vvvv<v<<^<>^>^^>^>>>vv>vv>v<^>v>^<<>^v<<<<v>^^vv>^v<^v>^>>^^^><v^>^>>^v<>v^<^v><>v><<<><<v<^^^^vv>^v><<<vv<<vv>^^v>><v<^vv<^<>v<vv^^v^vv<>v^^v<^^><<>^^>>v>v^>v<<vvv><^>v<<>v<<v<<><>^^^><^^^<<>v>v<<><<><^<v<<<>>v^<<v><<><^>^v>>>>><>v<<v>^^^>^>^v^v>><>>>>vvv^<v><^>^<^>v<^>^v>^<^^<vv<<v^<^^><<>v^<>^vv>^<>v>vv>v^^^<v^><^v^^^vv>vv>v^>^<<v><^vvv>v<vv<<^^>v^>v><>v^^^^<^v^v^<><vv<^<<vv>v>v^>>^<v>v>^<vv>>v<><^^<><vv>><<v<>^<>v<^>vvv<<>v<v^v>>^>><v^>^^><>vvv^^^v>^^<v>>><>v>^<^^^>vv<<<^>vv<^<^<>vvv<>^v^^>^^<^^^v^<v<^><>v<^^>^^>>v^v<><^v<>><>^<<<<v^v<^>v>>v><vv<v^<v^^v><vv^vv>>>^>^v>^^^vvvvvv>^vv>v>v<>^^><><^>^<>>^^^v^<<v<<v<v<<vv^^^vv>v^<^<<<^<vv<><>><<<vv><<<^^<<><<><>^<<vv<v^<v>><^v^^v><^v>>vv
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+^v>v^<v>^vv^<vv^<vvv<^>^<<<><^<>v>vv<<>>v>^^v<^>>v<^^^^^v>><<v<^v^><>v<>v<<^<<vv<^vv^>^vv^^<^<>v<>^^>><^v>>^v<^^^^<^<><<v>^<^>><>><vv><<<<^^v<v<^v<^>v<<^><^v^<<<^^v>>v<v>><v>v^<<>v^<<^^^>>>vv^v<v<^v<vv<<>^><<vvvv^v^^v^>^^>>><^v>>>^<v>^><<>v<^vvv^<^^<<^<vvvv>^^v^^^<><<v<<^v^v^><v^^><>v^vv>^v<<v^^v^v<v>v^<<vv^<<<>>v>vv<vv^v<>^>><><v><^^^^v^v>^<^>^^^<<>><<<v<v<^>>^v>v<><<v<^^vv<>^vvv>v^^^vv^<v><<^>vv>>>^v<^^><v<^<vv^^^><>>^v^<^v<><v><v>v^>>^<v<^<v>><>v>v><^^v>v<v^vvv^v^<^<^>^><^><<>>v<^^^>>^^^<>^^>v><^<>v^><^<>v^>>^^^<vv<vvvvv^^>v^<vv>v<><><<^><v^v<>^><v<<^vv>v><^<<>><^>^v<v>^^<<>^v<v><vv>^<^>><^^v^>^v^^<^<^<>>>^v^<<<<v>^>v<vvvv>><<v>^vv<<<<v>>>vv>>>^^><><v>^^<^v^<v^^^>v>v>>>^><<^>^v<<<<^<vv>v<v<<^>^<<^^>v^v^><^v^^v>v>>^vvv<<v>>vvv^^^>v^^>^v<^<<^<>>>><^<^><>^>^<<<v<<>v>^v^>>>v^vv>^vvv<>vv>^>^^>v^^^<^>>^vv><<><^>v>^<^>><><v>><^v<<<vv<>vv>><^^^^v>^<><v<^>>>>vv<>v>>v^><>v^vv^vv^>><^^^<>v<>vv<<v<>^<^^^<>^vv><<<>>v<><<^>>vv<>^>>>^v^>v<>v><<^^v^<<>v^v<>^>v<^>^>^vvvv^>^<<<>>>><^>>^>^^v>^vvv<vv><
+>>v><^>>>v<>><^><v^v<>><<vv>>v<v>v<>^>^<<>v>><>v<<v><v^<<v><^^>vv^>v^v><>^>^v>v<<^<v<v<v^vv>^^>>>vv>>v<^v^^^<^<>>^>^<<^^>v<><^><v^>>><vv^^v>>>>>>^<v<<^v<v><v<v<v>>v>^><^><<v^>>>>^v<<<>><<v^^^v>>vv^<<^>><^v>vv>>^v<<><>>v>>>><vv><v><v^<>^>^vv^<<><<v^^><>^>v<vv<vv^vv^<^<<^<^vv<<<^>>><^^v^<v^^v^>^v><>^<>^^v>^>vv>><>^<^>^>^><>^^^<><<<^v^<vv<^<^^v^>v<vvv^>^>>>>^v>>>^>^^<v<^>>^><>v<>v>^<vv<^v<>v^^^>v<<<>^<<<vv^v^>vvv^<v^v^><><^vv^v<^^<v<^v^vv^<>>^<^<>><<<>v><^^^v^^>^<>>^<v^<<><v><>v>^v><v>^v<^^v<>v><v><^<v^^^v^>^^<<v>v<^v>v>v^vv>^<vv>^vv><^>vv>v>>v^>^<v^v>v<<>v><><>vv^>v>^vvvv>^v<v<^v^>^>v>>v^>v<v>v>v^^^>v>>>v>v^vv<<>^>><^<^v>v^<v>^<v^^^<v<><v^>v<^v<>^><^>^v<v<<>>>>v^<>^>vv^^vv>v>^>>^>^<^^><^v^<v<v^<^><^vv<vv^v>^v<><>vvv<>^^^>v><^<<vv><vvv>>v>><<^vvv<v^>><<<v^>^<^<vv>^vvv<<>^<<>^<^><><>>>>^>^>^^><<<^<^v^<<<>><>>><<v><^v><vv^v>>v^<<>^v<>^^<>v<>>^<<>^<<<>vv<^^v<^^<<>^v^><^^vv^<v><<<^><>>vv><^<>>vvvvv^<^<<^>>v<<^^v>><>^><<<vv^^v^^<>>v<v^<^^^^^^v><^<^>><^>>v>^>>vv^>^<^><v^^>^^>><vv^^<vv^<vvv<><v>
+vv^^v^<^>>v><^^><v<<v^^<vv>^v>v^>v^v<>>>><^<^v>v>>><>vvvv<<<><>^^v^^>v>>^><v^>^>^^>><v<^<>v^v<^<vv>v>^^v^^v<^v^>v><><>>^>vv^^<<v<^^^<^v<vv^vv^^<>>v<>vv>^<>^v>>v^><<^^v<^><<v^^^^<>>^^<<^>^<v>^v^^>>^^>^^^><><<<<<>^^<^v^^><^<>v^>>v^^>^<^<><>>^v<v<<<^^v><<v>^<<<<^<><v<^v<<<>^>>v^v<^v<<^>^^<>^v<<v^><vv^><>>^^>v^<>>v>^<v^>v<><>>>v><v>v><><>>^>vv<v^>^<<><>>^<<^^<<vv>v^<vv>><v^^>v>>^<>^>v<>>>^vv<<<<<^^>^<<<><<><^^^<v>v<><<<^v><^^^v<^<vv<^>>^^<><v^^<^^^v<v<<<<v^<<v^<v<><^^<^vv^^v<^<<><^^^^>v<vv<v>^<<<v>v^^>>v<v^>><>>>>>><v><v>^^<>><v^^><<vvvvvv>>>v^<v>v><><>v>v<><<v<<>v>v<>>>^^<<^v>v^v>v<>v><>vv^><vv^>vv>>>vvv<>^<v>^><<><<^<^^<>v<>^<v<><<<<><<><vv>v<vv<^v^<^^<<v>v<v<<^^<<>>vv^v>v^>^>v>>^<^^^<^<v^v^^v^^v^<<>^v<^vv<^<<>>^>>>v><^v^<v>v>^^^^<^v>><^<><^>^<^vvvv><>v^vv>vv^<v<v^^v^>v^<>v^>^^^^<^<<>^v<<>^^>>v<^><>^<<<^^^>>vv^^^><<v^<^v<v^^v<><vvv^^v^>^v<<>v^v^<><v^<v^^>v>^<<^<v^>^^<^^v^>v<v^^<<v>^v<>v^^>><^v<^>^v<v<>^>>^>v^vv^<v>^v^>>v^^<^v^^^<<vv^<><>^vvvv<>v<v^v^v^>>^<v>><>><vv<<>>v<>^<^>^^>^vv^<<<<>
+vv<^vv<^^^v>^>><>><^v><><v^>^^v^><>v>^v>^^v<>>>^^^>>^v^v>^<v>^^<>^<>>^<v>><^^v<><v^>^<v>>^^^vv<^^v<<^vvv^<^vv<<<^v^v<v><v<^<<<<v^<^^vvv^^<v^vv>vv>v<<^v<vv<<<<v>^vv>^^^^<<v^>^v^<><<><v^><<>>>><^><<^<v^v^<<^v<<>^>v>^^^>vvv^<v<<>>v>>>^vv>>^<<^><<^^<<v^v^<v<<<<^<v<><vvv^^^>^^><<v^v^v^^v^<v<^<vvv>>^^vv>>>v^^>>><>^<<^<><<v>>^^^v<^^<v<<v<<v^v<^^v><vv>^<>v<<^^^^>^<^^^v>^<<><><vv^^<<>>>^<vv>v^>vvv<<^>><^^<<<><<<><>>^<<v<v<^^>v>>^^v>^>^^v<^<<<v>v><^>^^^^>^^<>^<<<<>^^^vv<^<^^<v<<v^^<<<v<v<^>v^<>>>>^^<v>v<v^<<<<v<<>v<v>^v>^vvvv><vv>v>^<^<>^<>v^<v>>v^>v<^><<v^^v>^<<v<v^^^<><^>v><>v<v>>v<><>v^^^vv<>v>v^^<^<<^>>^<v<>>^<^>v^^^<>>^<vvv<v>v>>^vv>^^v>><><<<>^vvv<vv^>^v^vv>v><v><v><v><vv>v<<>>><<>>^v^>^v><v^>v<^v<v<vv>><^<<<v<^<^<><<^<<>^>vv^v^>^>v>>><^v<v^vv^>^^<v>vvv^^<<^<v<vv<^<<v<>vvv<^<v^v>v>>>vvvv^>>^v>^^>>>^v>v^^vv^v^^>><v<^<<><>^<<v^v>vvvv<^<^vvv>v^<<><>^><^vv<^^^><>v<^>v<v<v<v<v<>v>^<<>v<vv>>vv<>^^v>>>>^>>vv>v<<v<><^^^<<>>vv><<^<^><>^<v<>v<v>>>^^>v<^><^<<><<^v^>^<^<^>v^vvv^v<><^>vvv>^v<^^>>v<<v><
+v^v<^^>>>^>>>>v^>>^>vv><>^vv^v>vv^v>v<^^<<^<^<<>>^>^<^<vv^^>^<>vv>vv<<<>v^<^v>^^<v<<>v><v<v>>>><v>v^^v>^^v^v<<<<^v<^^^><vvv<v>^^v<><vv><^v<<<v><v<>^v<^v<><^<v<^<>><^>><^<v<v<^>>>>^><vv><^>>^^v><>v^vv<<^<>><^^<vvv>><>>>>v><><>^^<<^^^v<><<>^>v>>><^^<<<<<<vv^>>v^^vv<v>>v<<<v><>v^>vv<>>v<^v^>>>v<>^^><^^vvv^^<^<>><<<v^^v>vvvv^<<<vv^^^>>^><v>>>>><<^<^v^<<^v^>^>vv><^^><<<v<^^^v>vvv<<vvv>^>^<^^<v><<^<^vv<><>><^><v>^>^<^vvv^<<<v<>v^<v<^v<v<v<><<v^^<><<<v^v>^>>^v^^<<<^<v>v^^v<><v<>v>>v<>><>v<>^<v^<^<>v<^>vvv<^v^><<<><^v^^>>v<<v^>^<>^^>><^vv^^^^vv><<vvvv<>^>v^<^v<>vvv<<>^<v>v^v^v<>>^^vv<v^>v>v<<^>>><<^v^vv^>v>><>>^v<>>^^v<<>^^^<<^^^<^>^<<>>>^vv<v>><v^v<<vv<^v^>><>vvvvv^<^>>^v><>>^^<>^v<^v<<><<>v><<^^vv<<>vvvv<v>v^>>>>v^^<><^<>^><v^>v^v<<>>vvv<^v^v^<v<^><>>v<<v>^>v^^^vvv>>^>v>v><<<>^^vv^^v^>vvv^<^>>v>v<vv>v>^^<^^^v<v>^<^<v^><<<>>^<<v>><<<>>>>>v<^v<>vvv<<><<^<^^<><^<<vvv^<<^^>^>^^^<^<vv<v<<<<vv^^>v>v<v<^<<>vv<^v>v>v^<>v>>>v<v^^<^<<v^v<<^^>^^><v><>>><<v<<>>>>^><><<<>^<><>v^>>^><><<<<>^><<v>>vvvv>^v<
+<^vv<><<>v<<^^>^>>>>^<^>><>vvv><<v>vv^v><^>><^vv<vv^^>v>vv^^>^<v<^<<^^v><^>v<<v>^^vv^<<^vvv<>>^>>vv<>^vv<v^^^^>>^^<><vv>^><v<>>^^v^^>><<<>><<<v^<>^<^^^<>^><>^v<v<^<><^<^>>^v>v^<^<>v^v>vv<^vv^v<v<v>>^^^<v<<vv>v><><<^<><vvvv<vv<v^^vvvv<^>v<v^><v<>><v<vv^^<^^>><^vvv^<><>^>>><>v><>^>vv>^<>v<v<><>>>v<^<v>vv^^v<^<v><v>v<^<vv>>v<vv<>vv><^>><^^>><vvv<<><v<v<<<^v^^vv>>v>v^><<>v^>v<vv>v<><v^>v^<v<^v^<<v<<>v^<vv^>^<^v>>v>>^^<^v^><v^>><^^v<<<vvv<>v>^<><>vv^^<^^>v^>>^<vv^><<<v<>>^vv<><^>^^^v^>v>>v<^^<v<^v^>^<^>v^^v>v^v^<>v<<vv^v^v<<v>^>^^^<vvv<v^^>vvv<^>v>vv><<v><v^>v<v<^<>^<>>^><><v<<<^><v<<><^>vvvv>^vvvv^<>vv^<<^><^<v>^v^v^<vvvvv>v<v<<<^<v>><^>vv><^>v>><>^v^>^<>>v<v<<>^vv>v^^^<^vv^><<>v<v^v^^<<>^^>vv><<v><><^v^>>v>^>^<v^^<<^^^><<v><^v<^<>v^>vv^<^^>^<vvvv>^v<v<>v>><^^<v^<><^<<><>^v<<vv^vv^<^vv^v><v^<>v^<^<>vv>vvv>^vv^>^<><<^^^^>v>>^<>v>v^^<^>>v<<<^v>>>>>^<><<<vvv<v<v<v><v^^^^<^<<>vv<^<v<><v>^>>^v^<<>v^<v^<v^^><><<^vv<<<<^<^^^<<v<<^>^^>>vv>^^>^vvv>v^>^<<>vv>v<v><^^vv^v><<v>^^vv><^v<v>^v>v^<^vv^v^vv
+v<><<^^^v>^v^><^<><><>>^>^>v^<<>v<><^<>>v^^v<<vvv^^><^^>>v>^>^<^<^^^^<>vv<>^>^vv^^>^>v>^v<v>><v^>^<v<^><^>^vv<><>>v<<<^v<>vv<v>vv^>>vvv^<><^>>^^>>^>vvv>v><^><<^v<^>>v^^vvv^^<^v>v^vvv^>v>>>vv>v><^><><<^>><^v<<^>v<>^vv>>^^^^v<vvv<><>v>><v<v<><<<<^^^v^v>^v>vvv>><vvv>><^>^<>vv^^<>v^>^^<>>^vv><^^>vv^v<>^>>^v^<^<>^vv>^v^>>><^<>v<>^v<^>><<>><>v>>>^v^^^<^^<>>^^^<v>^v>^^vv>><v<^^^^>>vvv>vv>>>v<^v^v^^><^<>><v<v<>vv<>v^v<v<vv><><<<^vv^^^<^><<^^^^v>>^<v<^><><v^><<<v>>v<><><>v^<<>v^>><v<>>^>^^^<><>^>>>v^>v<v>>>v<^v^^>^^^^>>v^>>><<<>>><>>>^>v^v^v>v^v^<>>>vvv^vv^<vv><>^v<>v^^<<^><v<^<^<<vv^vv>^<>^<^>>v^v>>v^<<v>^>^^<^^^>^v>^^>vv<vvv^>>vv<v<v<>^v>v^v^<<vvv<v<<>>v^>vv^^^v<vv<<<><<^vv<>>^>^<>vv<^>>>><>^><v>^v<<^v>v<<v><^<v^v^^>>^<^^^>>v>v>v<^v><<><v<^>v<<^><><>><v>^^vv<^v<><<>^^v>^^^v^v^<<^v^<>^<^<^vv^^v><<^vv^<v<<^^<>v<<v<>^^<<v>^><^>^><^^><>>>^v<^<>^^>><<^v<^<<<<><vv>>v^>^v^v<>>^^<<v^><^^>>v>^><>^^^<^>>vv^><<<^<>>^v>>v<<>>^>^^><v>^^<v^^v>^<>v^vv><^^^^v>^>><>v<>v>^v^^^^^v^>^^v<<>>^<<<>v<<vv^^><><^<<v<v
+vvv><<^^<^>><^^^v^>v^>^v<v>>v<<<>>^<<>><vv<<<v^>^v><<<^<>>>>>^v<v><>><>^>>>>>>v<<^^^^v^vv<^^^>v^v<>^vvv^^v<><^v<^v<vv^v>>>^^^<^<v^>vv>>><^>>>v>^<><><<<>>^^^><v^<v>v<v>v<>>^><>><<vvvvv><vv<>v<><^>v>>v><>>>v^^>^><<<^<>^^^<<<<>vv<^vv<>>^><^><>v<vv^^^>^>^<<v<^v<>v>>^>^^>vv<>^v<^^<><<>^^<>^>^^^^^^<^^<<vv<^^^><<<<v<^v>>^^>^v^^^>vvvv<^v^<^<^^<^v>^^^^>^<>v>><<<vvv<<>^<><v><^^>v<v><v^<^vvv<<v<>>v^<<<vv^>>^>><^<^><<^v^^<v>>>>^<vv^<<^<<v^^^^v^<<^<><v^>><>><<<><vv<<<<^>^<<v<><><^>^>>v^^><^<^v^<>^vv<<v>^<<vv>^<^^<v^v^^^<<>v>vv>^>>v^<<v^v>^<^<>^<v><v<vv><vv><>^<v^v<^>vv^^vv>v>><^>>><<^^^vv^<^^<v^^<<^<^<><^<v>>^v>^<>^v><>^v^><>>^<<vv>vv<>vv<<<<^^vv<^<v^^><v>>^^>v^vv>^<<^v<^vv>v^^^^v^^v^vvvv>^><<^^>v^<^v<>>^^<>^v^<<<^>><>^vv^<v^^>v><v<<<^v><<>v<<v<^<vvv<^^^<>v><vv<<^>>>v^^v^<<vv<<>^><v^<^>v<^vvv<<v<v>^<<<><>>^<<<>v^vv^<^^^^>>>v^v<^vvvv>^<v>^^^^>vv^^v>vvvvv^<<<v<<v>^v^v<v>^<<<>^>^><^>>v^<v<>v^<><^<^vv>vv<v^vv^>>v<v<<><<<<<<>>>v^>^^>>^v<>v<v<>v^<><>^^^>v>v><<<<^<v^><<><v<><>>^v>>>v^v^^v<>><<vv^>><><v<^>

Inputs/Day3.txt

@@ -0,0 +1,6 @@
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Inputs/Day8.txt

@@ -0,0 +1,50 @@
+.....wV....q.....................................n
+.......w......q.h.....Vn.........................D
+............w.S..G.....................DT.........
+......S........h......e..T.....y......D...........
+......m.......Ae.......T........o.................
+....m....S........................................
+...m..........................n........8..........
+.........2...G......................n.............
+..2........V.......h................Q.............
+............................o.....................
+.Z......I..U....e...u.....G....o..................
+...N..G.........................................y.
+.....I............q.......h...................s...
+......U........qI....o.V..Rz........8........k....
+......d.Z.........................R.......8y......
+.........e..............T.....l...................
+.......2.........................u...R............
+.....d.............................Q..............
+...................v.....................s.Q....M.
+........2..........4.....................8..7.k...
+...........x..N..................A..........k.....
+...........ZN...........v...............K.........
+...d.......N.....................Ky.6.............
+...........................l6.....................
+....L....g.................4.......k..K.......0...
+..............L...........4R................s.....
+U......r..............H.4.........................
+.......U.............a.......H.............u......
+......xY...............l..........................
+...................................6..u...........
+........Y......L......l............0..............
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+..................v........6.EX.............z.....
+d..Y.............m......A.........................
+......................a.i......M...........z......
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+..........3................W........E...i...0.....
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+....................................7....5........
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+t..............3.x.....9..........W.M.............
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+Z.............x................X.i......5.........
+...........3.....................................1
+...................O.......s....X.................
+..............r...................................
+..........................O.................1.....

Program.cs

@@ -25,6 +25,19 @@ var selectedDay = AnsiConsole.Prompt(select);
 
 var stopWatch = new Stopwatch();
 
+// Read input
+try
+{
+    selectedDay.ReadInput();
+}
+catch (Exception e)
+{
+    AnsiConsole.WriteException(e);
+
+    Environment.Exit(1);
+}
+
+// Part 1
 AnsiConsole.MarkupLine($"[cyan]Running [yellow]{selectedDay}[/]...[/]\n");
 
 AnsiConsole.MarkupLine("[cyan]Part [yellow]1[/] result:[/]");
@@ -44,7 +57,9 @@ catch (Exception e)
 
 stopWatch.Reset();
 
+// Part 2
 AnsiConsole.MarkupLine("\n[cyan]Part [yellow]2[/] result:[/]");
+
 try
 {
     stopWatch.Start();

StringExtensions.cs

@@ -14,4 +14,25 @@ public static class StringExtensions
     {
         return new StringReader(text).ReadAllLines();
     }
+
+    public static char[,] AsCharGrid(this string text)
+    {
+        var lines = text.ReadAllLines().ToArray();
+        var lineCount = lines.Length;
+        var columnCount = lines[0].Length;
+
+        var grid = new char[lineCount, columnCount];
+
+        for (int i = 0; i < lineCount; i++)
+        {
+            var line = lines[i];
+
+            for (int j = 0; j < columnCount; j++)
+            {
+                grid[i, j] = line[j];
+            }
+        }
+
+        return grid;
+    }
 }