class Main1000 {
	public static void main(String[] args) {
		Main1000 p = new Main1000();
	}

	public Main1000() {
		System.out.println("Hello World!");
		try {
			Thread.sleep(10000);
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		solve();
	}

	public void solve() {
	}
}

class Main1001{
	public static void main(String[] args) {
		try {
			Thread.sleep(2000);
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println("Hello World!");
	}
}

class Main1002{
	public static void main(String[] args) {
		System.out.println("Hello World!");
	}
}