#include <bits/stdc++.h>
using namespace std;
const int mod = 998244353;
int main() {
  int t;
  cin >> t;
  int ans = 1;
  while (t--) {
    vector<int> a(12, 0);
    for (int i = 1; i <= 9; ++i)
      cin >> a[i];
    while (a[1] >= 2 && a[1] > a[2]) {
      a[1] -= 2, a[2]++;
    }
    for (int i = 2; i <= 9; ++i) {
      if (a[1] == 0)
        break;
      int ad = min(a[1], a[i]);
      a[1] -= ad, a[i] -= ad, a[i + 1] += ad;
    }
    for (int i = 1; i <= 10; ++i) {
      ans %= mod;
      if (a[i]) {
        for (int j = 1; j <= a[i]; ++j) {
          ans = (ans * i) % mod;
        }
      }
    }
    cout << ans << endl;
  }

  return 0;
}