#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <fstream>
#include <queue>
#include <complex>
 
#define INF 100000000
#define YJ 1145141919
#define INF_INT_MAX 2147483647
#define INF_LL_MAX 9223372036854775807
#define EPS 1e-10
#define Pi acos(-1)
#define LL long long
#define ULL unsigned long long

using namespace std;

int main(){

  for(char c1 = '0'; c1 <= '9'; c1++){
    for(char c2 = '0'; c2 <= '9'; c2++){
      for(char c3 = '0'; c3 <= '9'; c3++){
	string str;
	str += c1;
	str += c2;
	str += c3;
	cout << str << endl;
	cin >> str;
	if(str == "unlocked")
	  return 0;
      }
    }
  }

  return 0;

}