MOD = 10 ** 9 + 7
INF = 10 ** 12
import sys
sys.setrecursionlimit(100000000)
dy = (-1,0,1,0)
dx = (0,1,0,-1)
from  itertools import permutations

def main():
    t = int(input())
    for _ in range(t):
        a,b,c = map(int,input().split())
        ans = INF
        if b < c:
            if b < a < c:
                ans = 0
            elif a <= b:
                if a > 1:
                    ans = min(ans,b - a + 1)
            elif c <= a:
                if b + 1 == c:
                    if b > 1:
                        ans = min(ans,a - c + 2)
                else:
                    ans = min(ans,a - c + 1)
        elif c < b:
            if c < a < b:
                ans = 0
            elif a <= c:
                if a > 1:
                    ans = min(ans,c - a + 1)
            elif b <= a:
                if c + 1 == b:
                    if c > 1:
                        ans = min(ans,a - b + 2)
                else:
                    ans = min(ans,a - b + 1)
        
        elif b == c:
            if a == b:
                if a > 2:
                    ans = min(ans,3)
            elif a > b:
                if b > 2:
                    ans = min(ans,a - b + 3)
            else:
                if a > 1:
                    ans = min(ans,b - a + 1)
        
        if a < b:
            if a < c < b:
                ans = 0
            elif c <= a:
                if c > 1:
                    ans = min(ans,a - c + 1)
            elif b <= c:
                if a + 1 == b:
                    if a > 1:
                        ans = min(ans,c - b + 2)
                else:
                    ans = min(ans,c - b + 1)
        
        elif b < a:
            if b < c < a:
                ans = 0
            elif c <= b:
                if c > 1:
                    ans = min(ans,b - c + 1)
            elif a <= c:
                if b + 1 == a:
                    if b > 1:
                        ans = min(ans,c - a + 2)
                else:
                    ans = min(ans,c - a + 1)
            
        elif a == b:
            if c == b:
                if a > 2:
                    ans = min(ans,3)
            elif c < a:
                if c > 1:
                    ans = min(ans,a - c + 1)
            else:
                if a > 2:
                    ans = min(ans,c - b + 3)
        
        if ans == INF:
            print(-1)
        else:
            print(ans)

if __name__ =='__main__':
    main()