using System;

public class Program

{

    public static void Main()

    {

        var d = DateTime.Now;

        Console.WriteLine("{0}",d.ToString("o"));

        Console.WriteLine("\n\n");

        Console.WriteLine("{0}",DateTime.SpecifyKind(d, DateTimeKind.Utc).ToString("o"));

        Console.WriteLine("{0}",DateTime.SpecifyKind(d, DateTimeKind.Unspecified).ToString("o"));

        Console.WriteLine("{0}",DateTime.SpecifyKind(d, DateTimeKind.Local).ToString("o"));

    }

}