import java.util.ArrayList;
import java.util.concurrent.CountDownLatch;


public class SleepSort {
	
	private static volatile ArrayList<Integer> sorted = new ArrayList<Integer>();
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		CountDownLatch latch = new CountDownLatch(args.length);
		for(String string : args){
			Integer num = Integer.parseInt(string);
			new AddToListRunnable(num, latch).start();
		}
		try {
			latch.await();
			System.out.println(sorted);
		}
		catch (InterruptedException e) {
			e.printStackTrace();
		}
	}
	
	
	private static class AddToListRunnable extends Thread {

		private final Integer number;
		private final CountDownLatch latch;
		public AddToListRunnable(Integer number, CountDownLatch latch){
			this.number = number;
			this.latch = latch;
		}
		
		@Override
		public void run() {
			try {
				sleep(number * 1000l);
				sorted.add(number);
				latch.countDown();
				System.out.println(latch.getCount());
			}
			catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
		
	}
}