import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		 Calendar calendar = Calendar.getInstance();
		 Scanner scan = new Scanner(System.in);
		 String s = scan.next();
		 scan.close();
		 int year = Integer.parseInt(s.substring(0, 4));
		 String month = s.substring(5, 7);
		 String day = s.substring(8, 10);

		 if(month.charAt(0) == '0'){
			 month = month.substring(1, 2);
		 }
		 if(day.charAt(0) == '0'){
			 day = day.substring(1, 2);
		 }

		 SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");
		 calendar.set(year, Integer.parseInt(month) - 1, Integer.parseInt(day));
		 //System.out.println(sdf.format(calendar.getTime()));
		 calendar.add(Calendar.DATE, 2);

		 System.out.println(sdf.format(calendar.getTime()));

	}
}