def kado(A,B,C):
    if A>0 and B>0 and C>0 and A!=B and A!=C and B!=C and (max(A,B,C)==B or min(A,B,C)==B):
        return 1
    return 0

T=int(input())
for test in range(T):   
    A,B,C=map(int,input().split())
    S=sorted([A,B,C])
    CAN=[S[2]-S[1],S[2]-S[0],S[1]-S[0],0]
    CAN2=[]
    for i in CAN:
        for j in range(i-1,i+4):
            if j>=0:
                CAN2.append(j)

    from itertools import product

    P=list(product(CAN2,repeat=3))
    ANS=1<<31

    for x,y,z in P:
        if kado(A-x,B-y,C-z)==1:
            ANS=min(ANS,x+y+z)

    if ANS==1<<31:
        print(-1)
    else:
        print(ANS)