code: добавление вывода произведения

main.cpp

@@ -1,9 +1,13 @@
 #include <iostream>
-
 using namespace std;
-
+//you may type whatever you want
 int main()
 {
-    cout << "Hello world!" << endl;
-    return 0;
+    cout << "Enter A and B: ";
+    int a, b;
+    cin >> a >> b;
+    cout << "A + B = " << a + b << '\n'
+         << "A - B = " << a - b << '\n'
+         << "A * B = " << a * b << '\n';
+
 }