#include <bits/stdc++.h>
using namespace std;
using i64 = int64_t;

int query(int n, const vector<int>& v) {
    string s(n, '0');
    for (int u: v) {
        s[u] = '1';
        // cout << u << " ";
    }
    // cout << "." << endl;
    cout << "? " << s << endl;
    int x; cin >> x; return x;
}

mt19937_64 rng(random_device{}());

void answer(bool ans) {
    cout << "! " << ans << endl;
    exit(0);
}

int main() {
    int n; cin >> n;
    vector<int> deg(n);
    for (int i = 0; i < n; i++) {
        deg[i] = query(n, {i});
        if (!deg[i]) answer(false);
    }
    vector<int> now = {0}, rem(n - 1);
    iota(rem.begin(), rem.end(), 1);
    int now_deg = deg[0];
    for (int c = 1; c < n; c++) {
        if (!now_deg) answer(false);
        // coin collector
        while (true) {
            int v = rem[rng() % rem.size()];
            now.push_back(v);
            int new_deg = query(n, now);
            if (now_deg + deg[v] == new_deg) {
                now.pop_back();
                continue;
            } else {
                rem.erase(find(rem.begin(), rem.end(), v));
                now_deg = new_deg;
                break;
            }
        }
    }
    answer(true);
}