#include <iostream>
#include <fstream>
#include <tuple>
using namespace std;

int ask(std::string S){
    std::cout << S << std::endl;

    int N;
    std::string T;
    std::cin >> N >> T;

    return N;
}

int count;
bool finished[10];
int answer[10];

std::string make(int i, int j){
    return std::string(i, 'X') + std::to_string(j) + std::string(10-(i+1), 'X');
}

int main(int argc, char* argv[]){
    for(int i=0;i<10;i++){
        std::string S(10, '0'+i);
        if(ask(S) > 0){
            for(int j=0;j<10;j++){
                if(!finished[j] && ask(make(j, i)) > 0){
                    finished[j] = 1;
                    answer[j] = i;
                    if(++count == 10){i = 10; break;}
                }
            }
        }
    }

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

    int N;
    std::string T;
    std::cin >> N >> T;    
}