diff --git a/exercises/ex4.cpp b/exercises/ex4.cpp
index 9d93d8ac..9cc0b51e 100644
--- a/exercises/ex4.cpp
+++ b/exercises/ex4.cpp
@@ -12,6 +12,33 @@ int main()
 
   switch (month)
   {
+  case 1:
+  case 3:
+  case 5:
+  case 7:
+  case 8:
+  case 10:
+  case 12:
+    printf("31 days\n");
+    break;
+
+  case 4:
+  case 6:
+  case 9:
+  case 11:
+    printf("30 days\n");
+    break;
+
+  case 2:
+    printf("28/29 days\n");
+    break;
+
+  default:
+    printf("Invalid input! Please enter month number between 1-12");
+  }
+
+  /*switch (month)
+  {
   case 1:
     printf("31 days");
     break;
@@ -50,7 +77,7 @@ int main()
     break;
   default:
     printf("Invalid input! Please enter month number between 1-12");
-  }
+  }*/
 
   return 0;
 }
\ No newline at end of file