// 

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;

using ll = long long;

#define rep(i, n) for (int i=0; i<(int)(n); ++(i))
#define rep3(i, m, n) for (int i=(m); (i)<(int)(n); ++(i))
#define repr(i, n) for (int i=(int)(n)-1; (i)>=0; --(i))
#define rep3r(i, m, n) for (int i=(int)(n)-1; (i)>=(int)(m); --(i))
#define all(x) (x).begin(), (x).end()

const int INF = (int)(1e9);
const vector<vector<int>> slst = {
	{ 1, 1, 0 }, { 0, 1, 1 }, { 1, 0, 1 }, { 1, 1, 1 }
};

int main() {
	int t0;
	cin >> t0;
	rep(i0, t0) {
		vector<int> a(3), b(4);
		rep(i, 3) cin >> a[i];
		rep(i, 4) cin >> b[i];
		vector<int> ord(4);
		iota(all(ord), 0);
		ll res = 0;
		do {
			int mval = INF;
			rep(j, 3) if (slst[ord[3]][j] == 1) mval = min(mval, a[j]);
			int sub = 0;
			while (sub <= mval) {
				auto ta = a;
				ll val = 0;
				val += sub * (ll)b[ord[3]];
				rep(j, 3) if (slst[ord[3]][j] == 1) ta[j] -= sub;
				rep(i, 4) {
					int mcnt = INF;
					rep(j, 3) if (slst[ord[i]][j] == 1) mcnt = min(mcnt, ta[j]);
					val += mcnt * (ll)b[ord[i]];
					rep(j, 3) if (slst[ord[i]][j] == 1) ta[j] -= mcnt;
				}
				res = max(res, val);
				++sub;
			}
		} while (next_permutation(all(ord)));
		cout << res << endl;
	}
	return 0;
}