201a.rc

function : int main(){
   int a = 3;
   float b = 3.14;
   float c = 123456;
   
   cout << a + a << ", ";
   cout << a + b << ", ";
   cout << a + c << endl;
   
   cout << b + a << ", ";
   cout << b + b << ", ";
   cout << b + c << endl;
   
   cout << c + a << ", ";
   cout << c + b << ", ";
   cout << c + c << endl;

   cout << -a + a << ", ";
   cout << -a + b << ", ";
   cout << -a + c << endl;
   
   cout << b + -a << ", ";
   cout << b + -b << ", ";
   cout << b + -c << endl;
   
   cout << -c + -a << ", ";
   cout << -c + -b << ", ";
   cout << -c + -c << endl;

   return 0;
}