import java.util.*;
import java.lang.*;
import java.io.*;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

// The main method must be in a class named "Main".
class Main {
    public static void main(String[] args) {
        DateFormat dateCekTglJt = new SimpleDateFormat("yyyy/MM/dd");
		Date tglJt = null;
		Calendar calJt = null;
		try {
		    tglJt = (Date) dateCekTglJt.parse("2020/09/27");
		    calJt = Calendar.getInstance();
		    calJt.setTime(tglJt);
		} catch (ParseException e) {
		    e.printStackTrace();
		}
		calJt.setTime(tglJt);
        calJt.set(Calendar.MILLISECOND, 0);
        calJt.set(Calendar.SECOND, 0);
        calJt.set(Calendar.MINUTE, 0);
        calJt.set(Calendar.HOUR_OF_DAY, 0);
        calJt.add(Calendar.MONTH, 3);
		calJt.add(Calendar.DATE, 0);
		calJt.add(Calendar.YEAR,0);

		String tglTransJt = String.valueOf(new SimpleDateFormat("YYYYMMdd").format(calJt.getTime()));
		System.out.println(tglTransJt);
    }
}