#define _USE_MATH_DEFINES
#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<string>
#include<iostream>
#include<iostream>
#include<cctype>
#include<cstdio>
#include<vector>
#include<stack>
#include<queue>
#include <algorithm>
#include<math.h>
#include<set>
#include<map>
#include <sstream>
#include<iomanip>
#include <ctype.h>
#include <fstream>
#include <cassert>

using namespace std;

//#include<bits/stdc++.h>



int main() {

	string d = "0000000000";
	
	
	string a;
		int n, r = 0;
	for (int i = 0; i < 10; i++) {
	
		for (int j = 0; j < 10; j++) {
			fflush(0);
			cout << d << endl;
			cin >> n >> a;
			if (a == "unlocked")return 0;
			if (n > r)break;
			d[i]++;
		}
	}

	return 0;
}