import java.util.Scanner;
public class mad {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		while (true) {
			String st = s.nextLine();
			if (st.charAt(0) == '0')
				break;
			String[] in = st.split(" ");
			String out = "";
			for (int i = 0; i < Integer.valueOf(in[1]); i++) 
				out += "1 ";
			for (int i = 2; i < in.length; i++) {
				int times = Integer.valueOf(in[i]) - Integer.valueOf(in[i-1]);
				for (int j = 0; j < times; j++)
					out += (i) + " ";
			}
			out = out.trim();
			System.out.println(out);
		}

	}

}