class YieldDemo {
	YieldDemo() {
		int x = 0;
		new MyThread().start();
		while (true) {
			x++;
		}
	}

	class MyThread extends Thread {
		public void run() {
			while (true) 
				System.out.print(i++ + " ");
		}
		int i;
	}

	public static void main(String [] args) {
		new YieldDemo();
	}
}