using System;

public class Program

{

    public static void Main()

    {

         var date = DateTime.ParseExact("2024-12-26 13:50:00.000", "yyyy-MM-dd HH:mm:ss.FFF", System.Globalization.CultureInfo.InvariantCulture);

        var date2 = DateTime.ParseExact("2024-12-26 13:50:00", "yyyy-MM-dd HH:mm:ss.FFF", System.Globalization.CultureInfo.InvariantCulture);

        Console.WriteLine(date);

        Console.WriteLine(date2);

    }

}