using System;

public class Program

{

    public static void Main()

    {

        DateTime now = DateTime.Now;

        DateTime[] Daty = new DateTime[] {now.AddDays(-3), now.AddDays(-35), now.AddDays(-143), now.AddDays(-643) };

        foreach (DateTime x in Daty)

        {

            Console.WriteLine(x + "\t" + Math.Round((now - x).TotalDays) + " dni");

            Console.WriteLine( x.AddMonths(1) < now);

            Console.WriteLine( x.AddMonths(3) < now && x.AddMonths(12) > now );

            Console.WriteLine( x.AddMonths(12)< now);

            Console.WriteLine("----------------------------------");

        }

    }

}