using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        string[] beatles = { "ringo", "Paul", "John", "george" };

        var sorted = beatles.Order(); // "george", "John", "Paul", "Ringo"

        var rev = beatles.OrderDescending(StringComparer.CurrentCulture); // "Ringo", "Paul", "John", "george"

        var sortedCaseIgnore = beatles.Order(

           StringComparer.OrdinalIgnoreCase

        );

​

        D(beatles);

        D(sorted);

        D(rev);

        D(sortedCaseIgnore);

        void D(IEnumerable<string> ns) => Console.WriteLine(string.Join(", ", ns.Select(n => $"\"{n}\""))); 

    }

}