diff --git a/AoC_2025/Day10.cs b/AoC_2025/Day10.cs
index 33694c8..8f97f73 100644
--- a/AoC_2025/Day10.cs
+++ b/AoC_2025/Day10.cs
@@ -23,9 +23,8 @@ public class Day10 : IPuzzleSolver<long>
             .ToArray();
         var lamps = puzzleInput
             .Select(input => input.lamps)
-            .Select(lamps => lamps.Index())
-            .Select(ixlamps =>
-                ixlamps.Select(ixlamp => ixlamp.Item == '#').ToArray())
+            .Select(lamps =>
+                lamps.Select(lamp => lamp == '#').ToArray())
             .ToArray();
         var buttons = puzzleInput
             .Select(input => input.buttons)