using System;
using System.Linq;
using System.Collections.Generic;
using System.Text.RegularExpressions;


class Program
{
    static void Main()
    {
        var inputDay = Console.ReadLine().Split("/");
        var year = int.Parse(inputDay[0]);
        var month = int.Parse(inputDay[1]);
        var day = int.Parse(inputDay[2]);

        DateTime theDay = new DateTime(year, month, day);

        DateTime newDay = theDay.AddDays(2);
        var ans = newDay.ToString().Split();
        Console.WriteLine(ans[0]);
    }
}