using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("hello and welecome to your number calcaulator - what is your name?");

        string name = Console.ReadLine();

        Console.WriteLine("please enter your first number, " + name);

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

        Console.WriteLine("please enter your second number, " + name);

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

        Console.WriteLine("thank you, " + name + " your answer is " + (firstnumber + secondnumber));

    }

}