def high(a, b, c):
    v = 0
    if a >= b:
        v += a - b + 1
        a = b - 1
    if c >= b:
        v += c - b + 1
        c = b - 1
    if a == c:
        v += 1
        a -= 1
    if min(a, b, c) <= 0:
        return inf
    else:
        return v
    
def low(a, b, c):
    v = 0
    if a == c:
        v += 1
        a -= 1
    if b > min(a, c):
        v += b - min(a, c) + 1
    b = min(a, c) - 1
    if min(a, b, c) <= 0:
        return inf
    else:
        return v 
    
    

T = int(input())
inf = 10 ** 18
for _ in range(T):
    A, B, C = map(int, input().split())
    ans = min(high(A, B, C), low(A, B, C))
    print(ans) if ans != inf else print(-1)