using System;

​

public enum OrderType

{

    Buy,

    Bid = Buy,

    Sell,

    Ask = Sell

}

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        OrderType o = OrderType.Buy;

        Console.WriteLine("{0}: {1}", (int)o, o);

        OrderType o2 = OrderType.Bid;

        Console.WriteLine("{0}: {1}", (int)o2, o2);

        OrderType o3 = OrderType.Sell;

        Console.WriteLine("{0}: {1}", (int)o3, o3);

        OrderType o4 = OrderType.Ask;

        Console.WriteLine("{0}: {1}", (int)o4, o4);

    }

}