using System;

​

public class MyProgram

{

    public static void Main(String[] args)

    {

        double real1;

        double real2;

        double real3;

        Console.WriteLine("Enter any real number.");

        input(out real1);

        Console.WriteLine("Enter a second real number.");

        input(out real2);

        Console.WriteLine("Enter a third real number.");

        input(out real3);

        if (real1 < real2)

        {

            if (real2 < real3)

            {

                // s, m, l

                Console.WriteLine("Your numbers in descending order: " + real3 + ", " + real2 + ", " + real1);

            }

            else

            {

                if (real1 < real3)

                {

                    // s, l, m

                    Console.WriteLine("Your numbers in descending order: " + real2 + ", " + real3 + ", " + real1);

                }

                else

                {

                    // m, l, s

                    Console.WriteLine("Your numbers in descending order: " + real2 + ", " + real1 + ", " + real3);

                }

            }

        }

        else

        {

            if (real2 < real3)

            {

                if (real1 < real3)

                {

                    // m, s, l

                    Console.WriteLine("Your numbers in descending order: " + real3 + ", " + real1 + ", " + real2);

                }

                else

                {

                    // l, s, m

                    Console.WriteLine("Your numbers in descending order: " + real1 + ", " + real3 + ", " + real2);

                }

            }

            else

            {

                // l, m, s

                Console.WriteLine("Your numbers in descending order: " + real1 + ", " + real2 + ", " + real3);

            }

        }

    }

    // .NET can only read single characters or entire lines from the console.

    // The following functions are designed to help input specific data types.

    private static void input(out double result)

    {

        while (!double.TryParse(Console.ReadLine(), out result));

    }

    private static void input(out int result)

    {

        while (!int.TryParse(Console.ReadLine(), out result));

    }

    private static void input(out Boolean result)

    {

        while (!Boolean.TryParse(Console.ReadLine(), out result));

    }

    private static void input(out string result)

    {

        result = Console.ReadLine();

    }

}

​