def cost(A,B):
    return max(A-B,0)

T=int(input())
X=[0]*T
inf=float("inf")

for i in range(T):
    A,B,C=map(int,input().split())

    #\/型
    A1,B1,C1=A,B,C
    if A==C:
        A1-=1

    B1=min(B1,min(A1,C1)-1)
    if min(A1,B1,C1)<=0:
        alpha=inf
    else:
        alpha=cost(A,A1)+cost(B,B1)+cost(C,C1)

    #/\型
    A2,B2,C2=A,B,C
    A2=min(A,B-1)
    if A2!=B-1:
        C2=min(C2,B-1)
    else:
        C2=A2-1

    if min(A2,B2,C2)<=0:
        beta=inf
    else:
        beta=cost(A,A2)+cost(B,B2)+cost(C,C2)

    if min(alpha,beta)==inf:
        X[i]=-1
    else:
        X[i]=min(alpha,beta)

print(*X,sep="\n")