diff --git a/buggy.py b/buggy.py
--- a/buggy.py
+++ b/buggy.py
@@ -3,7 +3,7 @@
 n, m = map(int, input().split())
 s = input()
 t = input()
-dp = [[[False] for _ in range(m + 1)] for _ in range(n + 1)]
+dp = [[False for i in range(m + 1)] for j in range(n + 1)]
 dp[0][0] = True
 for i in range(n):
     if i + m <= n:
