using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        CultureInfo.CurrentCulture.DisplayName.Dump();

        Console.WriteLine("Iı".ToLower());

        CultureInfo.CurrentCulture = CultureInfo.GetCultureInfo("de-DE");

        Console.WriteLine(CultureInfo.CurrentCulture.DisplayName);

        Console.WriteLine("Iı".ToLower());

        CultureInfo.CurrentCulture = CultureInfo.GetCultureInfo("tr-TR");

        Console.WriteLine(CultureInfo.CurrentCulture.DisplayName);

        Console.WriteLine("Iı".ToLower());

    }

}