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

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

int main() {
    int t;
    cin >> t;
    for (int i = 0; i < t; i++) solve();
}