def bmin(a,b,c):
    r = 0
    if a==c:
        a -= 1
        r += 1
    v = min(b,min(a,c)-1)
    if a <= 0 or v <= 0: return INF
    return r+b-v

def bmax(a,b,c):
    r = max(0,a-b+1) + max(0,c-b+1)
    a = min(a,b-1)
    c = min(c,b-1)
    if a == c:
        a -= 1
        r += 1
    if a <= 0 or b <= 0 or c <= 0: return INF
    return r

INF = 10**18
def solve(a,b,c):
    p = bmin(a,b,c)
    q = bmax(a,b,c)
    ans = min(p,q)
    return -1 if ans == INF else ans

T = int(input())
for _ in range(T):
    a,b,c = map(int,input().split())
    print(solve(a,b,c))