diff --git a/buggy.py b/buggy.py
--- a/buggy.py
+++ b/buggy.py
@@ -90,7 +90,7 @@
         """
 
         def ceil(xxx, yyy):
-            return xxx / yyy + int(xxx % yyy != 0)
+            return xxx // yyy + int(xxx % yyy != 0)
 
         x, y, a, b, c = ac.read_list_ints()
         for perm in permutations([a, b, c], 3):
