import sys
input = sys.stdin.readline
def main():
    T = int(input())
    ans = 0
    for _ in range(T):
        A, B, C = map(int, input().split())
        mid_min_cost = 0
        mid_min_list = [A, B, C]
        if mid_min_list[0] == mid_min_list[2]:
            mid_min_list[2] -= 1
            mid_min_cost += 1
        while min(mid_min_list) != mid_min_list[1]:
            mid_min_list[1] -= 1
            mid_min_cost += 1

        if mid_min_list[0] == mid_min_list[1] or mid_min_list[2] == mid_min_list[1]:
            mid_min_cost += 1
            mid_min_list[1] -= 1


        mid_max_cost = 0
        mid_max_list = [A, B, C]
        while max(mid_max_list) != mid_max_list[1]:
            if max(mid_max_list) == mid_max_list[0]:
                mid_max_list[0] -= 1
                mid_max_cost += 1
            if max(mid_max_list) == mid_max_list[2]:
                mid_max_list[2] -= 1
                mid_max_cost += 1
        
        if mid_max_list[0] == mid_max_list[1]:
            mid_max_cost += 1
            mid_max_list[0] -= 1

        if mid_max_list[2] == mid_max_list[1]:
            mid_max_cost += 1
            mid_max_list[2] -= 1

        if mid_max_list[2] == mid_max_list[0]:
            mid_max_cost += 1
            mid_max_list[2] -= 1


        if min(mid_max_list) <= 0 and min(mid_min_list) <= 0:
            ans = -1 
        else:
            ans = min(mid_max_cost, mid_min_cost)
        print(ans)
        


if __name__ == "__main__":
    main()