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())
    Y,Z=Z,Y

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

    if A==B==C:
        if A>=4:
            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 A>=5:
            print(min(Y+X,Y+Z,2*X+3*Z,2*Z+3*X))
        elif A>=3:
            print(min(Y+X,Y+Z))
            
        else:
            print(-1)
        continue

    ANS=1<<60
    
    LA=[0,1]
    LB=[0,1]
    LC=[0,1]

    if B-C>=0:
        LA.append(B-C)
        LA.append(B-C+1)
        LA.append(B-C+2)

    if A-C>=0:
        LA.append(A-C)
        LA.append(A-C+1)
        LA.append(A-C+2)

    if A-B>=0:
        LB.append(A-B)
        LB.append(A-B+1)
        LB.append(A-B+2)

    if C-B>=0:
        LB.append(C-B)
        LB.append(C-B+1)
        LB.append(C-B+2)
        
    if B-A>=0:
        LC.append(B-A)
        LC.append(B-A+1)
        LC.append(B-A+2)

    if C-A>=0:
        LC.append(C-A)
        LC.append(C-A+1)
        LC.append(C-A+2)

    for la in LA:
        for lb in LB:
            for lc in LC:
                if check(A-la-lc,B-la-lb,C-lb-lc)==1:
                    ANS=min(ANS,la*X+lb*Y+lc*Z)                

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