diff --git a/operation.cpp b/operation.cpp
new file mode 100644
index 0000000..4a28b3b
--- /dev/null
+++ b/operation.cpp
@@ -0,0 +1,18 @@
+#include<bits/stdc++.h>
+using namespace std;
+inat main()
+{ 
+  int a,n;
+  cin >> a >> n;
+  
+  if(a==1)
+  {
+    a=a+a;
+    cout << a;
+  }
+  else if(a==2)
+  {
+    a=a-a;
+    cout << a;
+  }
+}