1000 Days after birth.

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


namespace ConsoleApp8
{
    class Program
    {
        static void Main(string[] args)
        {
            DateTime birthDay = DateTime.ParseExact(
                Console.ReadLine(), "dd-MM-yyyy",null);

            Console.WriteLine(birthDay.AddDays(999).ToString("dd-MM-yyyy"));
        }
    }
}