import java.time.LocalDate;
import java.time.Period;
import java.time.Month;


public class Joulu {

    public static void main(String[] args) {

        LocalDate now = LocalDate.now();
        //LocalDate now = LocalDate.of(2019, 12, 31);
        //LocalDate now = LocalDate.of(2019, 12, 25);
        //LocalDate now = LocalDate.of(2019, 12, 24);

        int currentYear = now.getYear();
        LocalDate christmasDate = LocalDate.of(currentYear, 12, 24);
        LocalDate newYear = LocalDate.of(currentYear, 12, 31);

        if(now.getDayOfYear() > christmasDate.getDayOfYear()
            && now.getDayOfYear() <= newYear.getDayOfYear()) {
            christmasDate = christmasDate.withYear(currentYear + 1);
        }

        Period timeLeftUntilChristmas = now.until(christmasDate);

        if(timeLeftUntilChristmas.isZero()) {
            System.out.println("ON JOULUAATTO!");
        } else {
             System.out.println("Jouluaattoon on aikaa " + timeLeftUntilChristmas.getMonths() + " kuukautta ja " + timeLeftUntilChristmas.getDays() + " päivää");
        }
    }

}