#include <iostream.h>


class calculator
{
 public:

  calculator()
  {
    x=0;
    y=0;
  }

  int add(int num1, int num2)
  {
    return num1 + num2;
  }

  int subtract(int num1, int num2)
  {
    return num1 - num2;
  }

 private:
  int x;
  int y;

};



int main()
{
  char answer='\0';
  int number1=0;
  int number2=0;

  calculator myCalc;  // create instance of my class

  cout << "First Number? ";
  cin >> number1;
  
  cout << "Second Number? ";
  cin >> number2;

  cout << "(A)dd or (S)ubract? ";
  cin >> answer;

  if ( (answer == 'A') || (answer == 'a'))
    cout << "Answer is: " << myCalc.add(number1, number2) << endl;
  else
    cout << "Answer is: " << myCalc.subtract(number1, number2) << endl;

  return 0;

}