T=int(input())

def check(A,B,C):
    if min(A,B,C)<=0:
        return 0
    if A==B or B==C or C==A:
        return 0
    if B==max(A,B,C) or B==min(A,B,C):
        return 1
    return 0

    

for test in range(T):
    A,B,C,X,Y,Z=map(int,input().split())

    if check(A,B,C)==1:
        print(0)
        continue

    if A==B==C:
        if A>=3:
            print(min(X+2*Z,Z+2*X,2*Y+X,2*Y+Z))
        else:
            print(-1)
        continue

    if A==C and B==A-1:
        if B>=2:
            print(min(Y+X,Y+Z,2*X+3*Z,2*Z+3*X))
        else:
            print(-1)
        continue

    ANS=1<<60
    if A>=B and check(B-1,B,C)==1:
        ANS=min(ANS,(A-(B-1))*X)

    if A>=C and check(C-1,B,C)==1:
        ANS=min(ANS,(A-(C-1))*X)

    if B>=A and check(A,A-1,C)==1:
        ANS=min(ANS,(B-(A-1))*Y)

    if B>=C and check(A,C-1,C)==1:
        ANS=min(ANS,(B-(C-1))*Y)

    if C>=A and check(A,B,A-1)==1:
        ANS=min(ANS,(C-(A-1))*Z)

    if C>=B and check(A,B,B-1)==1:
        ANS=min(ANS,(C-(B-1))*Z)


    if A>=B>C and C>1 and C==B-1:
        ANS=min(ANS,X*(A-(B-1))+Z)

    if C>=B>A and A>1 and A==B-1:
        ANS=min(ANS,Z*(C-(B-1))+X)

    if A>B==C and B>2:
        ANS=min(ANS,X*(A-(B-1))+Z+min(X,Z))

    if C>B==A and B>2:
        ANS=min(ANS,Z*(C-(B-1))+X+min(X,Z))
        
        

    if ANS==1<<60:
        print(-1)
    else:
        print(ANS)