T = int(input())
for _ in range(T):
    A, B, C, x, y, z = map(int, input().split())
    g = [(A, x), (B, y), (C, z)]
    g.sort()

    A, x = g[0]
    B, y = g[1]
    C, z = g[2]

    ans = 1 << 60

    # d >= B
    P = x + y - z
    Q = x * A + y * B - z * C
    if P == 0:
        ans = min(ans, -Q)
    else:
        d = Q // P
        for dd in range(-10, 10):
            t = max(B, d + dd)
            ans = min(ans, abs(A - t) * x + abs(B - t) * y + abs(C - t) * z)

    # d < B
    P = x - y - z
    Q = x * A - y * B - z * C
    if P == 0:
        ans = min(ans, -Q)
    else:
        d = Q // P
        for dd in range(-10, 10):
            t = min(B, d + dd)
            ans = min(ans, abs(A - t) * x + abs(B - t) * y + abs(C - t) * z)
    
    print(ans)