diff --git a/u6/matching_brackets.py b/u6/matching_brackets.py
index e393c90..d54f23c 100644
--- a/u6/matching_brackets.py
+++ b/u6/matching_brackets.py
@@ -10,3 +10,4 @@ def is_paired(input_string):
                 return False
             spisok.pop()
             
+    return len(spisok) == 0