import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.Set;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		final int size = 10;
		
		int[] numbers = new int[size];
		
		boolean inited = false;
		int prev = 0;
		for(int i = 0; i < size; i++){
			
			StringBuilder sb = new StringBuilder();
			for(int j = 0; j < size; j++){
				sb.append(numbers[j]);
			}
			System.out.println(sb.toString());
			
			final int ret_value  = sc.nextInt();
			final String ret_str = sc.next();
			
			if(ret_str.equals("unlocked")){
				return;
			}
			
			if(!inited || ret_value <= prev){
				numbers[i]++;
				numbers[i] %= 10;
				i--;
				inited = true;
			}
			prev = ret_value;
		}
	}

}