using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;

class Program
{
    static void Main()
    {
        string inputOne = Console.ReadLine();
        string inputTwo = Console.ReadLine();

        DateTime startDate = DateTime.ParseExact(inputOne, "dd-MM-yyyy", CultureInfo.InvariantCulture);
        DateTime endDate = DateTime.ParseExact(inputTwo, "dd-MM-yyyy", CultureInfo.InvariantCulture);

        //Holidays' months and days, ignore year
        DateTime[] holidays = new DateTime[]
            {
        new DateTime(9999, 01, 01),
        new DateTime(9999, 03, 01),
        new DateTime(9999, 05, 01),
        new DateTime(9999, 05, 06),
        new DateTime(9999, 05, 24),
        new DateTime(9999, 09, 06),
        new DateTime(9999, 09, 22),
        new DateTime(9999, 11, 01),
        new DateTime(9999, 12, 24),
        new DateTime(9999, 12, 25),
        new DateTime(9999, 12, 26),
            };

        //Get years here
        List<DateTime> holidaysByYears = new List<DateTime>();
        for (int i = 0; i < holidays.Length; i++)
        {
            int day = holidays[i].Day;
            int month = holidays[i].Month;

            for (DateTime curDay = startDate; curDay <= endDate; curDay = curDay.AddDays(1))
            {
                if (curDay.Day == day && curDay.Month == month)
                {
                    holidaysByYears.Add(curDay);
                }
            }
        }


        int workDays = 0;

        for (DateTime curDay = startDate; curDay <= endDate; curDay = curDay.AddDays(1))
        {
            bool holiday = holidaysByYears.Contains(curDay);
            bool saturday = curDay.DayOfWeek == DayOfWeek.Saturday;
            bool sunday = curDay.DayOfWeek == DayOfWeek.Sunday;

            if (!holiday && !saturday && !sunday)
            {
                workDays++;
            }
        }

        Console.WriteLine(workDays);
    }
}