using System.IO;
using System;


class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("Hello! Welcome to my shop!");
        Console.WriteLine();
        Console.WriteLine("Enter your name."); // Asking the user to input first variable
        string name = (Console.ReadLine());
        Console.WriteLine();
        Console.WriteLine("Your name is {0}", name);
        Console.WriteLine();
        Console.WriteLine("Enter a number with two decimal places."); // Asking user to enter a number with two decimal points
        double first = double.Parse(Console.ReadLine());
        Console.WriteLine();


        Start:
            Console.WriteLine("Would you like to enter another number? Type Y or N."); // If Else Statement asking if user wants to enter a second number
            string answer = Console.ReadLine();

            double second = 0;

            if (answer == "Y")

                    {
                    Console.WriteLine("Enter your second number ");
                    second = double.Parse(Console.ReadLine());
                    }


            else if (answer == "N")
            goto End;


            else
            {
                Console.WriteLine("Invalid answer, please try again.");
                goto Start;
            }
            End:
            {
                double result = first+second;
                Console.WriteLine("Your first number was: {0}", first);
                Console.WriteLine("Your second number was: {0}", second);
                Console.WriteLine($"The sum of the number(s) including GST is {result * 1.15}");
            }

    }
}