#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <set>
#include <map>
#include <string>
#include <queue>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
void solve() {
  int m; cin >> m;
  int n = 9;
  vector<int> d(n); for (int i = 0; i < n; i++) cin >> d[i];
  long long ans = 0;
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < d[i]; j++) {
      ans = ans * 10 + i + 1;
    }
  }
  for (int i = 0; i < 10; i++) ans *= 10;
  long long y = ans % m;
  ans = ans + m - y;
  cout << ans << endl;
}

int main() {
  int t; cin >> t;
  while (t--) solve();
}