// simpcalc.cpp
// Simple calculator

#include <iostream>

using namespace std;


int main() {

  int num1, num2, result;
  char op;

  cout << "Simple calculator.  Enter simple expression." << endl;

  cin >> num1 >> op >> num2;

  switch (op) {
  case '+': result = num1 + num2;
	    break;
  case '-': result = num1 - num2;
	    break;
  case '*': result = num1 * num2;
	    break;
  case '/': if (num2 != 0)
	      result = num1 / num2;
	    else
	      cout << "No divide by zero" << endl;
	    break;
  default:  cout << "Illegal operator" << endl;
  }

  cout << "= " << result << endl;
}