class ProducerConsumer {
    private int limit = 5;
    private int tmp = 0;
    private int n = 0;
    private int m = 0;
    

    public void produce() throws InterruptedException {
        int value = 0;
        while (n++ < limit * 2) {
            synchronized (this) {
                while (tmp == limit) {
                    wait();
                }
                System.out.println("Producer produced: " + tmp++);
                notify();
            }
        }
    }

    public void consume() throws InterruptedException {
        while (m++ < limit * 2) {
            synchronized (this) {
                while (tmp == 0) {
                    wait();
                }
                System.out.println("Consumer consumed: " + --tmp);
                notify();
            }
        }
    }
}

public class P4 {
    public static void main(String[] args) {
        ProducerConsumer pc = new ProducerConsumer();

        Thread producerThread = new Thread(() -> {
            try {
                pc.produce();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        });

        Thread consumerThread = new Thread(() -> {
            try {
                pc.consume();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        });

        producerThread.start();
        consumerThread.start();
    }
}