using System;

public class Program

{

    public static void Main()

    {

    int a,b;

        string operator;

        Console.WriteLine("Please Enter your Operator");

        operator=Console.ReadLine();

        {

        Console.WriteLine("Please Enter your First Number:");

        a=int.Parse(Console.ReadLine());

        Console.WriteLine("Please Enter your Second Number:");

        b=int.Parse(Console.ReadLine());

        }

        switch(operator);

        {

            case("+");

            Console.WriteLine(a+b);

            break;