using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
using System.Diagnostics;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var s = ReadLine();
        var day = DateTime.Parse(s);
        WriteLine(day.AddDays(2).ToString("yyyy/MM/dd"));
    }
}