Run id: 65499

Main.cc: In function 'int main()':
Main.cc:5:11: error: 'a' was not declared in this scope
    cin >> a , b;
           ^
Main.cc:5:15: error: 'b' was not declared in this scope
    cin >> a , b;
               ^
Main.cc:4:8: warning: unused variable 'f' [-Wunused-variable]
    int f;
        ^