using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        /*var tmp = "";

        tmp = null;

        var res = tmp?.TrimEnd(';') ?? "hello";

        Console.WriteLine(res);*/

        var res1 = DateTime.TryParse("", out var dt);

        Console.WriteLine(res1);

        Console.WriteLine(dt);

    }

}