#include <bits/stdc++.h>

using namespace std;

#define REP(i,n) for(int i=0; i<(int)(n); i++)
#define FOR(i,b,e) for (int i=(int)(b); i<(int)(e); i++)
#define ALL(x) (x).begin(), (x).end()

const double PI = acos(-1);

string t = "1234567890";

int ask(const string &s) {
  cout << s << endl;
  cout.flush();

  int ret;
  string lock;
  cin >> ret >> lock;
  return ret;
}

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);

  string s = "0000000000";

  REP (i, 10) {
    vector<int> cnt(10);
    for (int j = 0; j < 10; j++) {
      s[i] = '0' + j;
      cnt[j] = ask(s);
      if (cnt[j] == 10)
        return 0;
    }
    char t = '0' + (max_element(cnt.begin(), cnt.end()) - cnt.begin());
    s[i] = t;
  }
  
  return 0;
}