#include using namespace std; typedef long long ll; #define REP(i,n) for(int i=0; i #define VLL vector #define VVI vector> #define VVLL vector> #define VC vector #define VS vector #define VVC vector> #define fore(i,a) for(auto &i:a) typedef pair P; template bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } template bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } const int INF = 1 << 30; const ll INFL = 1LL<<60; const ll mod = 1000000007; int main() { while (true) { REP(i, 1000) { cout << setfill('0') << right << setw(3) << i << endl; string s; cin >> s; if (s == "unlocked") return 0; } } }