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

namespace ObjectClassSecondProblem
{
    class Program
    {
        static void Main(string[] args)
        {


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

            int workingDays = 0;
            bool holiday = false;

            List<DateTime> holidays = new List<DateTime>()
            {
                DateTime.ParseExact("01-01-1970", "dd-MM-yyyy", CultureInfo.InvariantCulture),
                DateTime.ParseExact("03-03-1970", "dd-MM-yyyy", CultureInfo.InvariantCulture),
                DateTime.ParseExact("01-05-1970", "dd-MM-yyyy", CultureInfo.InvariantCulture),
                DateTime.ParseExact("06-05-1970", "dd-MM-yyyy", CultureInfo.InvariantCulture),
                DateTime.ParseExact("24-05-1970", "dd-MM-yyyy", CultureInfo.InvariantCulture),
                DateTime.ParseExact("06-09-1970", "dd-MM-yyyy", CultureInfo.InvariantCulture),
                DateTime.ParseExact("22-09-1970", "dd-MM-yyyy", CultureInfo.InvariantCulture),
                DateTime.ParseExact("01-11-1970", "dd-MM-yyyy", CultureInfo.InvariantCulture),
                DateTime.ParseExact("24-12-1970", "dd-MM-yyyy", CultureInfo.InvariantCulture),
                DateTime.ParseExact("25-12-1970", "dd-MM-yyyy", CultureInfo.InvariantCulture),
                DateTime.ParseExact("26-12-1970", "dd-MM-yyyy", CultureInfo.InvariantCulture),
            };

            for (DateTime i = startDate; i <= endDate; i = i.AddDays(1))
            {
                if (i.DayOfWeek.Equals("Saturday") || i.DayOfWeek.Equals("Sunday"))
                {
                    holiday = true;
                }

                for (int j = 0; j < holidays.Count; j++)
                {
                    if (i.Month == holidays[j].Month && i.Day == holidays[j].Day)
                    {
                        holiday = true;
                    }
                }

                if (!holiday)
                {
                    workingDays++;
                }


                holiday = false;


            }

            Console.WriteLine(workingDays);
        }
    }
}