#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
//#include<cctype>
#include<climits>
#include<iostream>
#include<string>
#include<vector>
#include<map>
//#include<list>
#include<queue>
#include<deque>
#include<algorithm>
//#include<numeric>
#include<utility>
#include<complex>
//#include<memory>
#include<functional>
#include<cassert>
#include<set>
#include<stack>

const int dx[] = {1, 0, -1, 0};
const int dy[] = {0, 1, 0, -1};
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef pair<int, int> pii;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    for (int i = 0; i < 10; i++) for (int j = 0; j < 10; j++) for (int k = 0; k < 10; k++) {
        string s;
        s += '0'+i;
        s += '0'+j;
        s += '0'+k;
        cout << s << endl;
        cin >> s;
        if (s == "unlocked") return 0;
    }
    return 0;
}