#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <math.h>
using namespace std;

// Drinking programming is so fun, isn't it?
int main() {
	int pin[10] = { 0 };
	int corrected = -1;

	for (int i = 0; i < 10;i++) {				// for each pin code digit
		for (int j = 0; j < 10;j++) {			// for each numeric
			pin[i] = j;

			// output
			for (int k = 0; k < 10; k++) cout << pin[k]; cout << endl;

			// input
			int responce1;
			string responce2;
			cin >> responce1 >> responce2;

			// check
			if (corrected == -1) corrected = responce1;	// initial round
			if (responce1 == 10 || responce2 == "unlocked") {
				return 0;								// mission completed :D
			} else if (responce1 > corrected) {
				corrected = responce1;
				break;									// to next digit
			} else if (responce1 < corrected) {
				pin[i] = j - 1;
				corrected = responce1 + 1;
				break;									// to next digit
			} else {
				corrected = responce1;
			}
		}
	}
}