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

#define rep(i, a, b) for (int i = a; i < b; i++)
using ll = long long;

int main() {
	int t;
	cin >> t;
	rep(ti, 0, t) {
		ll a, b, c, x, y, z;
		cin >> a >> b >> c >> x >> y >> z;
		ll l = 0, h = 1e9 + 1, ans = 1e18;
		rep(i, 0, 100) {
			ll e1 = (2 * l + h) / 3;
			ll e2 = (l + 2 * h) / 3;
			ll f1 = abs(a - e1) * x + abs(b - e1) * y + abs(c - e1) * z;
			ll f2 = abs(a - e2) * x + abs(b - e2) * y + abs(c - e2) * z;
			if (f1 < f2) h = e2;
			else l = e1;
			ans = min({ans, f1, f2});
		}
		cout << ans << endl;
	}
}