DayOFWeek

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

namespace DayOFWeek
{
    class DayOFWeek
    {
        static void Main()
        {
            int[] datelemt = Console.ReadLine().Split('.').Select(int.Parse).ToArray();
            DateTime date = new DateTime(datelemt[2], datelemt[1], datelemt[0]);
            Console.WriteLine(date.DayOfWeek);
        }
    }
}