#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,m,n) for(int i=m; i<n; ++i)
#define repl(i,m,n) for(ll i=m; i<n; ++i)

int main(){
    for(int i = 0; i < 1000; ++i){
        string str = "";
        if(i < 10) str += "00";
        else if(i < 100) str += "0"; 
        str += to_string(i);

        cout << str << endl;

        string res;
        cin >> res;
        if(res == "unlocked"){
            return 0;
        }
    }
}