diff --git a/src/isSnowDay.py b/src/isSnowDay.py
index 08a3673..cdc497e 100644
--- a/src/isSnowDay.py
+++ b/src/isSnowDay.py
@@ -2,4 +2,10 @@
 #rule: 4 inches = snowday. nothing more. nothing less.
 #ex. [0, 8, 4, 999], return [False, False, True, False]
 def is_snow_day(snowfallList):
-    pass
+    a = []
+    for x in snowfallList:
+    	if x==4:
+    		a.append(True)
+    	else: 
+    		a.append(False)
+    return a