import java.util.*;

public class Main {
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		int[] arr = new int[10];
		int prev = getAns(arr, sc);
		if (prev == 10) {
		    return;
		}
		for (int i = 0; i < 10; i++) {
		    for (int j = 0; j < 9; j++) {
		        arr[i]++;
		        int tmp = getAns(arr, sc);
		        if (tmp == 10) {
		            return;
		        }
		        if (tmp > prev) {
		            prev = tmp;
		            break;
		        } else if (tmp < prev) {
		            arr[i]--;
		            break;
		        }
		    }
		}
	}
	
	static int getAns(int[] arr, Scanner sc) {
	    StringBuilder sb = new StringBuilder();
	    for (int x : arr) {
	        sb.append(x);
	    }
	    System.out.println(sb);
	    System.out.flush();
	    int ans = sc.nextInt();
	    sc.next();
	    return ans;
	}
}