diff --git a/buggy.py b/buggy.py
--- a/buggy.py
+++ b/buggy.py
@@ -12,7 +12,7 @@
 
 import bisect
 
-for i in range(1, 14):
+for i in range(1, 16):
     b = sorted([x % (10**i) for x in a])
     for x in b:
         ans -= 9 * (n - bisect.bisect_left(b, 10**i - x))
