using System;
using System.Globalization;

namespace _01.CountWorkingDaYS
{
    class Program
    {
        static void Main(string[] args)
        {
            string startDateStr = Console.ReadLine();
            string endDateStr = Console.ReadLine();
            DateTime startDate = DateTime.ParseExact(startDateStr, "dd-MM-yyyy",CultureInfo.InvariantCulture);
            DateTime endDate = DateTime.ParseExact(endDateStr, "dd-MM-yyyy", CultureInfo.InvariantCulture);

            DateTime[] nonWorking = new DateTime[]   //[11] //{DateTime.ParseExact("") };
            {
                new DateTime(4,01,01),  //пълня масив с неработните празници
                new DateTime(4,03,03),
                new DateTime(4,05,01),
                new DateTime(4,05,06),
                new DateTime(4,05,24),
                new DateTime(4,09,06),
                new DateTime(4,09,22),
                new DateTime(4,11,01),
                new DateTime(4,12,24),
                new DateTime(4,12,25),
                new DateTime(4,12,26)
            };

            int countWorkDays = 0;

            for (DateTime i = startDate; i <= endDate; i=i.AddDays(1))
            {
                if (!(i.DayOfWeek == DayOfWeek.Saturday) && !(i.DayOfWeek == DayOfWeek.Sunday))
                {
                    countWorkDays++;
                    foreach (var item in nonWorking)
                    {
                        if ((i.Day == item.Day) && (i.Month == item.Month))
                        {
                            countWorkDays--;
                        }
                    }
                }


            }
            Console.WriteLine(countWorkDays);

            /*for (int i = 0; i < nonWorking.Length; i++)
            {
            }*/




        }
    }
}