using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {   

        var listInt = new List<int>(){0};

        Console.WriteLine(listInt.Contains(14));

        Console.WriteLine(listInt.Exists(x=>x == 1));

        return;

        var current = DateTime.Now;

        var d1 = new DateTime(2023, 9, 20);

        var d2 = new DateTime(2023, 9, 19);

        Console.WriteLine($"d1-days: {d1}, {(d1 - d2).TotalDays}, {(d1 - current).TotalDays}");

    }

}