using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.Text.RegularExpressions;
using System.Linq;


class Magatro
{
    static void Main()
    {
        bool[] C = new bool[10];
        int[] ans = new int[10];
        while (true)
        {
            Write(ans);
            string[] s = Console.ReadLine().Split(' ');
            if (s[1] == "unlocked")
            {
                return;
            }
            int cnt = int.Parse(s[0]);
            int[] copy = ans.ToArray();
            for (int i = 0; i < 10; i++)
            {
                if (C[i])
                {
                    continue;
                }
                int[] cp;
                cp = ans.ToArray();
                cp[i]++;
                Write(cp);               
                string[] ss = Console.ReadLine().Split(' ');
                if (ss[1] == "unlocked") {
                    return;
                }
                int a = int.Parse(ss[0]);
                if (cnt > a)
                {
                    C[i] = true;
                }
                else if (cnt < a)
                {
                    C[i] = true;
                    copy[i] = cp[i];
                }
                else
                {
                    copy[i] = cp[i];
                }
            }
            ans = copy.ToArray();
        }
    }
    static void Write(int[] ans)
    {
        for(int i = 0; i < 10; i++)
        {
            Console.Write(ans[i]);
        }
        Console.WriteLine();
    }
}