import sys
from collections import deque, Counter
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
inf = 2 ** 63 - 1
mod = 998244353
for _ in range(ii()):
    r, g, b = mi()

    z, x, y, w = mi()
    ans = 0
    def check(i):
        global r, g, b, w, x, y, z
        ans = 0
        xyztime = i // 2
        wtime = i % 2
        r -= i
        g -= i 
        b -= i
        now = xyztime * max(2 * w, x + y + z) + wtime * w
        for _ in range(3):
                g1 = min(r, g)
                g2 = g-g1
                ans = max(ans, now + z * min(g1, r) + x * min(g2, b))
                g2 = min(g, b)
                g1 = g-g2
                ans = max(ans, now + z * min(g1, r) + x * min(g2, b))
                r, g, b = g, b, r
                x, y, z = y, z, x
        r += i
        g += i 
        b += i
        return ans


    for i in range(0, min(r, g, b) + 1):
        ans = max(ans, check(i))

    print(ans)