#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define llong long long

int main() {
    cout << "0000000000" << endl;
    int prevnum = -1;
    int checkp = 0;
    vector<int> outputd(10, 0);
    while (true) {
        int num;
        string s;
        cin >> num >> s;
        if(prevnum == -1) prevnum = num;
        if(num == 10 && s == "unlocked") {
            return 0;
        } else {
            if(prevnum - num == 1) {
                outputd[checkp] = (outputd[checkp] + 9) % 10;
                checkp += 1;
            } else if(prevnum - num == -1) {
                checkp += 1;
                prevnum = num;
            } else {
                outputd[checkp] = (outputd[checkp] + 1) % 10;
                prevnum = num;
            }
        }
        rep(i, 10) cout << outputd[i];
        cout << endl;
    }
}