diff --git a/Python/Introduction/Write_a_function.py b/Python/Introduction/Write_a_function.py
index e57021a..2ca8307 100644
--- a/Python/Introduction/Write_a_function.py
+++ b/Python/Introduction/Write_a_function.py
@@ -27,13 +27,8 @@ def is_leap(year):
     leap = False
     
     # Write your logic here
-    if year % 400 == 0:
-        leap = True
-    elif year % 100 == 0:
-        leap = False
-    elif year % 4 == 0:
-        leap = True
-    
+    if (year % 4 == 0 and year % 100 != 0 or year % 400 == 0):
+        leap = True    
     return leap
     
 year = int(raw_input())