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

int64_t solve(int64_t a, int64_t b, int64_t c, int64_t x, int64_t y, int64_t z) {
    int64_t ans = 0;
    if (a > c) {
        swap(a, c);
        swap(x, z);
    }
    if (a == c) {
        if (x > z) swap(x, z);
        a--;
        ans += x;
    }
    if (a == 0) return -1;
    if (a > b || b > c) return ans;
    if (a == 1) {
        if (b <= 2) {
            return -1;
        } else {
            return ans + (c - b + 1) * z;
        }
    }
    if (c - a == 1) {
        int64_t aminus = x + solve(a - 1, b, c, x, y, z);
        if (aminus == x - 1) return ans + (b - a + 1) * y;
        return ans + min((b - a + 1) * y, aminus);
    }
    return ans + min((b - a + 1) * y, (c - b + 1) * z);
}

int main() {
    int t;
    cin >> t;
    for (int i = 0; i < t; i++) {
        int64_t a, b, c, x, y, z;
        cin >> a >> b >> c >> x >> y >> z;
        cout << solve(a, b, c, x, y, z) << endl;
    }
}