#include <bits/stdc++.h>

using namespace std;
#define int long long
int ran[33] = {0, 1, 2, 2, 2, 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 16, 16, 16, 16, 16,
               32, 32};

void solve() {
    pair<int, int> a[33];
    for (int i = 1; i <= 32; i++) cin >> a[i].first, a[i].second = i;

    sort(a + 1, a + 33, greater<>());
    for (int i = 1; i <= 32; i++) {
        if (a[i].second == 1) {
            cout << ran[i] << '\n';
            break;
        }
    }
}

signed main() {
#ifdef ONLINE_JUDGE
#else
    freopen("in.txt", "r", stdin);
    freopen("out.txt", "w", stdout);
#endif
    int Tcase = 1;
    cin >> Tcase;
    while (Tcase--) {
        solve();
    }
    return 0;
}