#include <bits/stdc++.h>
#include<iostream>
#include<iomanip>
#include<string>
#include<algorithm>
#include<vector>
#include<set>
#include<list>
#include<queue>
#include<math.h>
#include<bitset>
using ll = long long;
using namespace std;

int main()
{
    int q = 10, ex = 0;
    string base = "0000000000";
    vector<int> num(10), ans(10);
    while (q--){
        int ans1;
        string s = "", t;
        for (int i = 0; i < 10; i++) s += to_string(q);
        cout << s << endl;
        cin >> ans1 >> t;
        if (ans1 == 10) {
            cout << s << endl;
        }
        if (!ans1){
            ex = 1;
        }
        num[q] = ans1;
    }
    q = 10;
    while (q--){
        int ans1;
        string s;
        if (num[q] == 0) continue;
        for (int i = 0; i < 10; i++) {
            string base1 = base;
            if (q == 0) base1 = "1111111111";
            base1[i] = '0'+ q;
            cout << base1 << endl;
            cin >> ans1 >> s;
            if (ans1 == 10) {
                cout << base1 << endl;
                return 0;
            }
            if (q != 0) {
                if (ans1 == num[0]+1) ans[i] = q;
            } else {
                if (ans1 == num[1]+1) ans[i] = 0;
            }
        }
    }
    for (auto x : ans) cout << x;
    cout << endl;
}