#include <bits/stdc++.h>

using namespace std;
typedef long long ll;



int main(){
    int collect, collect_max, ret_collect;
    int const digit = 10;
    string s, ans, ret_string;
    string const s0 = "0000000000";
    for (int i = 0; i < digit; i++){
        s = s0;
        collect = -1;
        for (int j = 0; j < digit; j++){
            cout << s << endl;
            cin >> ret_collect >> ret_string;
            if (ret_string == "unlocked")
                return 0;
            else{
                if (ret_collect > collect)
                    collect_max = j;
                collect = ret_collect;
            }
            s[i]++;
        }
        ans += collect_max + '0';
    }
    
    cout << ans << endl;
    return 0;
}