using System;

public class Program

{

    enum SingleHue : short

    {

        None = 0,

        Black = 1,

        Red = 2,

        Green = 4,

        Blue = 8

    };

​

    [Flags]

    enum MultiHue : short

    {

        None = 0,

        Black = 1,

        Red = 2,

        Green = 4,

        Blue = 8

    };

    public static void Main()

    {

        Console.WriteLine(SingleHue.Blue.ToString());

        Console.WriteLine(MultiHue.Blue.ToString());

        Console.WriteLine((SingleHue.Blue | SingleHue.Green).ToString());

        Console.WriteLine((MultiHue.Blue | MultiHue.Green).ToString());

    }

}