using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Alphabetical order: ");

    string[] principals = {"Williams", "Harris", "Sweeney", "DeBeau", "Roche"};

        Array.Sort(principals);

            foreach (string i in principals)

            {

                Console.Write(i + " ");

            }

        Console.WriteLine("\n");

        Console.WriteLine("Reverse alphabetical order: ");

        Array.Reverse(principals);

            foreach (string i in principals)

            {

                Console.Write(i + " ");

            }

    }

}