using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Do you want to add (enter +) or subtract (enter -) or multiply (enter *) or divide (enter /): ");

        string input = Console.ReadLine();

​

            if (input == "+")

            {

                Console.WriteLine("Enter your first number: ");

                int add1 = Convert.ToInt32(Console.ReadLine());

                Console.WriteLine("Enter your second number: "); 

                int add2 = Convert.ToInt32(Console.ReadLine());

                int total = add1 + add2 ;

                Console.WriteLine(add1 + " + " + add2 + " = " + total);

​

            }

            else if (input == "-")

            {

                Console.WriteLine("Enter your first number: ");

                int sub1 = Convert.ToInt32(Console.ReadLine());

                Console.WriteLine("Enter your second number: "); 

                int sub2 = Convert.ToInt32(Console.ReadLine());

                int total = sub1 - sub2 ;

                Console.WriteLine(sub1 + " - " + sub2 + " = " + total);

            }

            else if (input == "*")

            {

                Console.WriteLine("Enter your first number: ");

                int mul1 = Convert.ToInt32(Console.ReadLine());

                Console.WriteLine("Enter your second number: "); 

                int mul2 = Convert.ToInt32(Console.ReadLine());

                int total = mul1 * mul2 ;

                Console.WriteLine(mul1 + " * " + mul2 + " = " + total);

            }

            else if (input == "/")

            {

                Console.WriteLine("Enter your first number: ");

                int div1 = Convert.ToInt32(Console.ReadLine());

                Console.WriteLine("Enter your second number: "); 

                int div2 = Convert.ToInt32(Console.ReadLine());

                int total = div1 / div2 ;

                Console.WriteLine(div1 + " / " + div2 + " = " + total);

            }

            else if (input != "+")

            {

                Console.WriteLine("Nope thats wrong");

            }

            else if (input != "-")

            {

                Console.WriteLine("Nope thats wrong");

            }

            else if (input != "/")

            {

                Console.WriteLine("Nope thats wrong");

            }

            else if (input != "*")

            {

                Console.WriteLine("Nope thats wrong");

            }

            else

            {

                Console.WriteLine("Nope thats wrong");

            }

    }

}