diff --git a/src/Day01.java b/src/Day01.java
index d9cf529..bd7f8ff 100644
--- a/src/Day01.java
+++ b/src/Day01.java
@@ -16,11 +16,12 @@ public class Day01 {
             while (scanner.hasNextLine()) {
                 String instruction = scanner.nextLine();
                 int change = Integer.parseInt(instruction.substring(1));
-                dial = switch (instruction.charAt(0)) {
-                    case 'L' -> (dial - change) % 100;
-                    case 'R' -> (dial + change) % 100;
-                    default -> dial; // impossible
+                int step = switch (instruction.charAt(0)) {
+                    case 'L' -> -1;
+                    case 'R' -> 1;
+                    default -> 0; // impossible
                 };
+                dial = (dial + change * step) % 100;
                 if (dial == 0) {
                     password += 1;
                 }