diff --git a/day3/day3_1.py b/day3/day3_1.py
index 61f65b2..be96f5c 100644
--- a/day3/day3_1.py
+++ b/day3/day3_1.py
@@ -14,7 +14,7 @@ def main():
         cloth.insert(i, [])
         for j in range(1000):
             cloth[i].insert(j, None)
-    
+
     print('allocation done')
 
     while True:
@@ -47,7 +47,7 @@ def main():
                 cloth[i][j].append(claim)
                 print('result: ', cloth[i][j])
 
-    overlaps = []
+    overlap = 0
 
     for i in range(1000):
         for j in range(1000):