diff --git a/main.cpp b/main.cpp
index daa1473..cc04f4e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -8,5 +8,7 @@ int main()
     int a, b;
     cin >> a >> b;
     cin >> a +b;
+    cin >> a -b;
+
 
 }