#include <bits/stdc++.h>
using namespace std;

signed main(){
  vector< int > match( 10 );
  for( int i = 0; i < 10; ++i ){
    string s;
    for( int j = 0; j < 10; ++j )
      s += ( char ) ( '0' + i );
    cout << s << endl;
    string reply;
    cin >> match[ i ] >> reply;
  }
  string s;
  for( int i = 0; i < 10; ++i )
    for( int j = 0; j < match[ i ]; ++j )
      s += ( char ) ( '0' + i );
  do{
    cout << s << endl;
    int m; string reply;
    cin >> m >> reply;
    if( reply == "unlocked" )
      break;
  } while( next_permutation( s.begin(), s.end() ) );
  return 0;
}