diff --git a/buggy.py b/buggy.py
--- a/buggy.py
+++ b/buggy.py
@@ -1,7 +1,7 @@
 s = input()
 
 ok = True
-for i in range(2, 16, 2):
+for i in range(1, 16, 2):
     ok = s[i] == "0" and ok
 
 print("Yes" if ok else "No")
