using System;

public class Program

{

    public static void Main()

    {

                        int dayOfWeek = (int) DateTime.Now.DayOfWeek;

                DateTime nextSundayThreeInTheMorning = DateTime.Now.AddDays(7 - dayOfWeek).Date.AddHours(3);

                var delay = nextSundayThreeInTheMorning.Subtract(DateTime.Now);

        Console.WriteLine(delay);

    }

}