using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter first number");

        int num1 = Convert.ToInt16(Console.ReadLine());

        Console.WriteLine("Enter 2nd number");

        int num2 = Convert.ToInt16(Console.ReadLine());

        Console.WriteLine("Enter operator : + , - , * , / , % or AC");

        char op = Convert.ToChar(Console.ReadLine());

        int result = 0;

        switch(op)

        {

​

            case '+':

                result = num1 + num2;

            Console.WriteLine(result);

            break;

​

            case '-':

                result = num1 - num2;

            Console.WriteLine(result);

            break;

​

​

            case '/':

                result = num1 / num2;

            Console.WriteLine(result);

            break;

​

            case '*':

                result = num1 * num2;

            Console.WriteLine(result);

            break;

            case '%':

                result = num1 % num2;

            Console.WriteLine(result);

            break;

        }

​

​

​

    }

}