import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Scanner;

public class p13_1000Days {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);


        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
       LocalDate date = LocalDate.parse(scanner.nextLine(),formatter);
       LocalDate newdate = date.plusDays(999);
       System.out.println(newdate.toString());

    }
}