INF = 1<<60
def two_same_kadomatsu(a,b,c,x,y,z):
    yield INF
    if b < c:
        if b > 2:
            yield min(x + z*(c - a + 1),2*x + z*(c - a))
        if b > 1:
            yield y
    else:
        if c + 1 == b:
            if c > 1:
                yield min(2*x,x + z,2*y)
        else:
            yield x
            if c > 1:
                yield y*(b - c + 1)

def completely_different_kadomatsu(a,b,c,x,y,z):
    yield INF
    if a + 1 == b:
        if a > 1:
            yield min(x + z*(c - a),z*(c - a + 1),y*(b - a + 1))
    else:
        yield z*(c - b + 1)
        if a > 1:
            yield y*(b - a + 1)      

def main():
    T = int(input())
    for _ in range(T):
        a,b,c,x,y,z = map(int,input().split())
        ans = INF
        if a == b == c:
            if a > 2:
                ans = min(ans,x + 2*z,2*x + z)
        elif a == b != c:
            ans = min(ans,min(two_same_kadomatsu(a,b,c,x,y,z)))
        elif a != b == c:
            ans = min(ans,min(two_same_kadomatsu(c,b,a,z,y,x)))
        elif c == a != b:
            if b > a:
                if a > 1:
                    ans = min(ans,x,z)
            else:
                if b + 1 == a:
                    if b > 1:
                        ans = min(ans,y + min(x,z))
                else:
                    ans = min(ans,x,z)
        elif a < b < c:
            ans = min(ans,min(completely_different_kadomatsu(a,b,c,x,y,z)))
        elif c < b < a:
            ans = min(ans,min(completely_different_kadomatsu(c,b,a,z,y,x)))
        else:
            ans = 0
        if ans == INF:
            print(-1)
        else:
            print(ans)

if __name__ =='__main__':
    main()