diff --git a/day13.py b/day13.py
index 5ebdce4..6429c84 100644
--- a/day13.py
+++ b/day13.py
@@ -6,10 +6,7 @@ from typing import Any
 
 
 def packet_compare(left: list, right: list, debug: int = 0) -> int:
-    for i in range(min(len(left), len(right))):
-        l_value = left[i]
-        r_value = right[i]
-
+    for l_value, r_value in zip(left, right):
         if isinstance(l_value, list) and isinstance(r_value, int):
             r_value = [r_value]
         elif isinstance(l_value, int) and isinstance(r_value, list):