#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
#define REP(i, a, b) for(int i=a;i<b;++i)

int main(){
  string so;
  REP(i,0,10) so.push_back('0');
  cout << so << endl;
  int a, last;
  string si;
  cin >> a >> si;
  last = a;
  REP(j,0,j<10&&last!=10){
    REP(k,1,10){
      so[j] = '0' + k;
      cout << so << endl;
      cin >> a >> si;
      if(last < a) {last = a; break;}
      else if(last > a){so[j] = '0' + k-1; break;}
    }
  }
  return 0;
}