HolidaysBetweenTwoDates

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MultiplyEvensByOdds
{
    class MultiplyEvensByOdds
    {
        static void Main(string[] args)
        {
            DateTime startDate = DateTime.ParseExact(Console.ReadLine(),"d.M.yyyy", CultureInfo.InvariantCulture);
            DateTime endDate = DateTime.ParseExact(Console.ReadLine(),"d.M.yyyy", CultureInfo.InvariantCulture);
            int holidaysCount = 0;
            for (var date = startDate; date <= endDate; date = date.AddDays(1))
            {
                if (date.DayOfWeek == DayOfWeek.Saturday ||date.DayOfWeek == DayOfWeek.Sunday)
                    holidaysCount++;
            }
            Console.WriteLine(holidaysCount);
        }
    }
}