diff --git a/lib/day3/command.dart b/lib/day3/command.dart
index 0cb0460..280325e 100644
--- a/lib/day3/command.dart
+++ b/lib/day3/command.dart
@@ -43,12 +43,12 @@ class Day3Command extends Command {
           final chars = line.split("");
 
           for (final (idx, char) in chars.indexed) {
-            final char_as_int = int.parse(char);
-            if (char_as_int > tens && idx < chars.length - 1) {
-              tens = char_as_int;
+            final charAsInt = int.parse(char);
+            if (charAsInt > tens && idx < chars.length - 1) {
+              tens = charAsInt;
               ones = -1;
-            } else if (char_as_int > ones) {
-              ones = char_as_int;
+            } else if (charAsInt > ones) {
+              ones = charAsInt;
             }
           }