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

namespace YukiCoder
{
    class Program
    {
        static void Main(string[] args)
        {
            string S = Console.ReadLine();
            S = DateTime.Parse(S).AddDays(2).ToString("yyyy/MM/dd");
            Console.WriteLine(S);
            Console.ReadLine();
        }
    }
}