import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.ReentrantLock;

class Monitor {
    private int storsteTall = -1;
    private final Lock lock = new ReentrantLock();
    private final Condition finnesFlereTall = lock.newCondition();

    public void giTall(int tall) {
        lock.lock();
        try {
            if (tall > storsteTall) {
                storsteTall = tall;
            }
        } finally {
            lock.unlock();
        }
    }

    public int hentTall() {
        lock.lock();
        try {
            return storsteTall;
        } finally {
            lock.unlock();
        }
    }
}