using System;

public class Program

{

    public static void Main()

    {

        balikdiribai:

    Console.WriteLine("+ FOR ADDITION");

    Console.WriteLine("- FOR SUBTRACION");

    Console.WriteLine("/ FOR DIVISION");

    Console.WriteLine("* FOR MULTIPLICATION");

    Console.WriteLine("% FOR MODULO");

    Console.WriteLine("/nSelect Operator: ");

    string userInput =  Console.ReadLine();

    if (userInput == "+")

    {

        Console.Write("You have Selected Addition");

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

        double num1 = Convert.ToDouble(Console.ReadLine());

        Console.Write("Enter Second Number: ");

        double num2 = Convert.ToDouble(Console.ReadLine());

        Console.WriteLine("n/ Answer: " + (num1 + num2) );

    }

    else if (userInput == "-")

    {

        Console.WriteLine("You have Selected Subtraction");

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

        double num1 = Convert.ToDouble(Console.ReadLine());

        Console.Write("Enter Second Number: ");

        double num2 = Convert.ToDouble(Console.ReadLine());

        Console.WriteLine("Answer: " + (num1 - num2) );

    }

    else if (userInput == "/")

    {

        Console.WriteLine("You have Selected Division");

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

        double num1 = Convert.ToDouble(Console.ReadLine());

        Console.Write("Enter Second Number: ");

        double num2 = Convert.ToDouble(Console.ReadLine());

        Console.WriteLine("Answer: " + (num1 / num2) );

    }

    else if (userInput == "*")

    {

        Console.WriteLine("You have Selected Multiplication");

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

        double num1 = Convert.ToDouble(Console.ReadLine());

        Console.Write("Enter Second Number: ");

        double num2 = Convert.ToDouble(Console.ReadLine());

        Console.WriteLine("Answer: " + (num1 * num2) );

    }

    else if (userInput == "%")

    {

        Console.WriteLine("You have Selected Modulo");

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

        double num1 = Convert.ToDouble(Console.ReadLine());

        Console.Write("Enter Second Number: ");

        double num2 = Convert.ToDouble(Console.ReadLine());

        Console.WriteLine("n/ Answer: " + (num1 % num2) );

    }

    else

    {

       Console.Clear();

       Console.WriteLine("Please Enter Proper Operetor");

       goto balikdiribai;

    }

    }

}