import java.util.Scanner;

public class Test {
	public static Scanner sc = new Scanner(System.in);

	public static void main(String[] args) {
		byte[] n = new byte[10];
		System.out.println("0000000000");
		int cnt = sc.nextInt(), tmp;
		String s = sc.next();
		if (cnt == 10) {
			return;
		}
		for (int i = 0; i < 10; i++) {
			for (int j = 1; j < 10; j++) {
				n[i] = (byte)j;
				for (int k = 0; k < 10; k++) {
					System.out.print(n[i]);
				}
				System.out.println();
				tmp = sc.nextInt();
				s = sc.next();
				if (tmp == 10) {
					return;
				}
				if (cnt != tmp) {
					if (cnt > tmp) {
						n[i]--;
					}
					break;
				}
			}
		}
	}
}