diff --git a/buggy.py b/buggy.py
--- a/buggy.py
+++ b/buggy.py
@@ -26,7 +26,7 @@
 cnt = 0
 total = 0
 ans = 1
-for i in range(1, M):
+for i in range(M):
     if i in A:
         cnt += 1
         continue
