#include <iostream>
#include <algorithm>
#include <vector>
#include <deque>
#include <string>
#include <tuple>
#include <functional>
#include <numeric>
#include <cmath>
#include <iomanip>
#include <map>
#include <random>
//#include "toollib.h"
#define INT_MAX 2147483647
#define Loop(i, n) for(int i = 0; i < (int)n; i++)
#pragma warning (disable:4018)

using namespace std;
typedef long long int lint;

typedef struct {
	int x;
	int y;
}coordinate;

//***** Main Program *****

int main() {
	string s = "0000000000";
	int x;
	string judge;
	int a, b, c;
	a = 0;
	b = -1;
	do {
		cout << s << endl;
		cin >> x >> judge;
		if (judge == "unlocked") break;
		if (x > b) {
			b = x;
			c = s[a];
		}
		if (s[a] < '9') s[a]++;
		else {
			s[a] = c;
			if (a < 9) {
				a++;
				b = -1;
			}
			else break;
		}
	} while (true);
	return 0;
}