import java.util.*;
import java.text.*;

public class Main {

    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        final DateFormat DF = new SimpleDateFormat("yyyy/MM/dd");
        Calendar cal = Calendar.getInstance();
        cal.setTime(DF.parse(s));
        cal.add(Calendar.DATE, 2);
        System.out.println(DF.format(cal.getTime()));
    }
}