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
            var name = (Console.ReadLine());
            Console.WriteLine();
            Console.WriteLine("Enter a number with two decimal places."); // Asking user to enter a number with two decimal points
            var 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

            var answer = Console.ReadLine();

            if (answer == "Y")

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


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


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