/*
   Write the following program: The user is asked to enter 2 floating point numbers (use doubles). The user is then asked to enter one of the following mathematical symbols: +, -, *, or /. The program computes the answer on the two numbers the user entered and prints the results. If the user enters an invalid symbol, the program should print nothing.
   */

#include <iostream>

int main() {
  double x, y;
  std::cout << "enter x: "<<'\n';
  std::cin >> x;
  std::cout << "enter x: "<<'\n';
  std::cin >> y;
  std::cout << "enter symbol " << '\n';;
  char symbol;
  std::cin >> symbol;

  double ans;
  switch (symbol) {
    case '+':
      ans = x + y;
      break;
    case '-':
      ans = x - y;
      break;
    case '*':
      ans = x * y;
      break;
    case '/':
      ans = x / y;
      break;
    default:
      return 0;
  }


  std::cout << "answer: " << ans << '\n';
  return 0;
}