I,R,=input,range
S,N,B,x=R(3),R(2),[0]*3,[0]*4
def J():
	return list(map(int,I().split()))
def U():
	global a
	s,b,c=sum(x),1,0
	for j in R(4):b*=x[j]>=0
	for j in S:b*=s-x[j]<=B[(j+2)%3]
	if b:
		for j in R(4):c+=x[j]*X[j]
		a=max(a,c)
def V():
	for k in S:B[k]=A[k]if k!=j else y
	for i in S:
		x[i],s=0,B[(i+2)%3]
		for k in N:x[(i+1+k)%3]=s-B[(i+k)%3]
		x[3]=s-x[(i+1)%3]-x[(i+2)%3]
		U()
	for w in N:
		x[3],x[0]=w,(B[0]+B[1]-B[2]-w)//2
		for k in N:x[1+k]=B[1-k]-x[0]-w
		U()
for t in R(int(I())):
	A,X,a=J(),J(),0
	for j in S:
		for y in R(A[j]+1):V()
	print(a)