using System;
using System.Globalization;
using System.Threading;
public class Program
{
public static void Main()
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US", false);
string[] strings = { "s", "As", "Bs", "Cs", "Ds", "Es", "as", "bs", "cs", "ds", "es", "AAs", "ABs", "ACs", "ADs", "AEs" };
foreach (string str in strings)
Console.WriteLine(str + " ends with 's': " + str.EndsWith("s"));
Console.ReadKey();
}