public class TwoPrinters {
	public static void main(String[] args) {
		for (int i = 1; i <= 2; i++) {
			String name = "" + i;
			(new Thread () {
				@Override
				public void run() {
					final int NUMBER = 10000;
					for (int i = 0; i < NUMBER; i++) {
						System.out.println(name);
					}
				}
			}).start();
		}
	}
}