using System;

public class Program

{

    public static void Main()

    {

​

            int firstNum;

            int secondNum;

            string operation;

            int answer;

            string action;

            Start:

            Console.WriteLine("Hello, welcome to Abdelrani's calculator!");

            //Console.ReadLine();

​

            Console.Write("Enter the first number in your basic equation: ");

            firstNum = Convert.ToInt32(Console.ReadLine());

​

            //User input for equation

            Console.Write("Now enter your second number in the basic equation: ");

            secondNum = Convert.ToInt32(Console.ReadLine());

            Console.Write("Ok now enter your operation ( x , / , +, -) ");

            operation = Console.ReadLine();

​

            if (operation == "x")

            {

                answer = firstNum * secondNum;

                Console.WriteLine(firstNum + " x " + secondNum + " = " + answer);

                //Console.ReadLine();

            }

            else if (operation == "/")

            {

                answer = firstNum / secondNum;

                Console.WriteLine(firstNum + " / " + secondNum + " = " + answer);

                //Console.ReadLine();

            }

            //Getting answers

            else if (operation == "+")

            {

                answer = firstNum + secondNum;

                Console.WriteLine(firstNum + " + " + secondNum + " = " + answer);

                //Console.ReadLine();

            }

            else if (operation == "-")

            {

                answer = firstNum - secondNum;

                Console.WriteLine(firstNum + " - " + secondNum + " = " + answer);

                //Console.ReadLine();

            }

            else

            {

                Console.WriteLine("Sorry that is not correct format! Please restart!");     //Restart Program

                //Console.ReadLine();

            }

​

            //User input to restart

            Console.Write("Start again? (Y)es (N)o");

            action = Console.ReadLine().ToLower();

            if (action == "yes" || action == "y")

            {

                Console.WriteLine("Restarting...");

                goto Start;

            }

            Console.WriteLine("Thank you!");

​

    }

}