#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define EPS (1e-7)
#define INF (1e9)
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define all(x) x.begin(),x.end()
#define pii pair<int, int>
#define pll pair<long long, long long>
const double PI = acos(-1);
const ll MOD = 1000000007;
// const ll MOD = 998244353;
template<class T>
inline bool chmax(T &a, T b) {
    if(a < b) {
        a = b;
        return true;
    }
    return false;
}
 
template<class T>
inline bool chmin(T &a, T b) {
    if(a > b) {
        a = b;
        return true;
    }
    return false;
}
///////////////////////////////////////////////////////////////

ll X,Y,Z;

ll f1(ll A, ll B, ll C) {
    ll res = 0;
    if (C >= A) {
        res += (C-A+1LL)*Y;
        B -= (C-A+1LL);
        C = A-1LL;
    }
    if (A >= B) {
        res += (A-B+1LL)*Z;
        C -= (A-B+1LL);
        A = B-1LL;
    }
    if (C <= 0) return 5e18;
    return res;
}

ll f2(ll A, ll B, ll C) {
    ll res = 0;
    if (A >= C) {
        res += (A-C+1LL)*X;
        B -= (A-C+1LL);
        A = C-1LL;
    } 
    if (C >= B) {
        res += (C-B+1LL)*Z;
        A -= (C-B+1LL);
        C = B-1LL;
    }
    if (A <= 0) return 5e18;
    return res;
}

ll f3(ll A, ll B, ll C) {
    ll res = 0;
    if (B >= A) {
        res += (B-A+1LL)*Y;
        C -= (B-A+1LL);
        B = A-1LL;
    } 
    if (A >= C) {
        res += (A-C+1LL)*X;
        B -= (A-C+1LL);
        A = C-1LL;
    }
    if (B <= 0) return 5e18;
    return res;
}

ll f4(ll A, ll B, ll C) {
    ll res = 0;
    if (B >= C) {
        res += (B-C+1LL)*X;
        A -= (B-C+1LL);
        B = C-1LL;
    }
    if (C >= A) {
        res += (C-A+1LL)*Y;
        B -= (C-A+1LL);
        C = A-1LL;
    } 
    if (B <= 0) return 5e18;
    return res;
}

int main() {
    ios::sync_with_stdio(false); cin.tie(nullptr);
    int T; cin >> T;
    while (T--) {
        ll A,B,C; cin >> A >> B >> C >> X >> Y >> Z;
        ll ans = 5e18;
        chmin(ans,f1(A,B,C));
        chmin(ans,f2(A,B,C));
        chmin(ans,f3(A,B,C));
        chmin(ans,f4(A,B,C));
        if (ans == 5e18) cout << -1 << endl;
        else cout << ans << endl;
    }
}