#include<iostream>
#include<string>

void print(int pass[]) {
	for (int i = 0; i < 10; i++) {
		std::cout << pass[i];
	}
	std::cout << std::endl;
}

int main() {
	int pass[] = {0,0,0,0,0,0,0,0,0,0};
	int ans = 0;
	std::string s;

	print(pass);
	std::cin >> ans >> s;

	while (ans != 10) {
		for (int i = 0; i < 10; i++) {
			for (int j = 1; j < 10; j++) {
				int tmp;
				std::string stmp;
				pass[i] = j;
				print(pass);
				std::cin >> tmp >> stmp;
				if (stmp == "10") return 0;
				if (tmp > ans) {
					ans = tmp;
					break;
				}
				if (tmp < ans) {
					pass[i] -= 1;
					break;
				}
			}
		}
	}
	return 0;
}