#include <bits/stdc++.h>

using namespace std;

struct Initializer {
  Initializer() {
    cin.tie(0);
    ios::sync_with_stdio(0);
    cout << fixed << setprecision(15);
  }
} initializer;

int main() {
  for (int i = 0; i < 1000; ++i) {
    cout << setw(3) << setfill('0') << i << endl;
    string r;
    cin >> r;
  }
}