import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;

class Cal {
    private static Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
    private static Date tmpdate = new Date();
    private static final int DAYS = 24 * 3600 * 1000;

    synchronized static short getDate(int year, int month, int day) {
        cal.set(Calendar.YEAR, year);
        cal.set(Calendar.MONTH, month);
        cal.set(Calendar.DATE, day);
        return (short)(cal.getTime().getTime() / DAYS);
    }


    synchronized static void toYMD(short date, int ymd[]) {
        tmpdate.setTime((long)date * DAYS);
        cal.setTime(tmpdate);
        ymd[0] = cal.get(Calendar.YEAR);
        ymd[1] = cal.get(Calendar.MONTH);
        ymd[2] = cal.get(Calendar.DATE);
    }
}