import java.util.Scanner;

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

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