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

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

	    String input = sc.nextLine();

	    String[] inputArr = input.split("/");

	    Calendar cal = Calendar.getInstance();

	    cal.set(Integer.parseInt(inputArr[0]), Integer.parseInt(inputArr[1])-1, Integer.parseInt(inputArr[2]) + 2);

	    SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");

	    System.out.println(sdf.format(cal.getTime()));
	}
}