#include <bits/stdc++.h>
using namespace std;
using ll = long long;

#ifdef LOCAL
#include <debug.hpp>
#else
#define debug(...)
#endif

void solve() {
    int M;
    vector<int> d(9);
    cin >> M;
    for (int i = 0; i < 9; i++) cin >> d[i];
    // corner case: d[i] = 0
    if (reduce(d.begin(), d.end()) == 0) {
        cout << M << '\n';
        return;
    }
    string tmp = "";
    for (int i = 0; i < 9; i++) tmp += string(d[i], i + '1');
    tmp += string(9, '0');
    ll ans = stoll(tmp);
    ans += (ans % M ? M - (ans % M) : 0);
    cout << ans << '\n';
}

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(20);
    int T;
    cin >> T;
    while (T--) solve();
}