#define MOD_TYPE 1

#pragma region Macros
#include <bits/stdc++.h>
using namespace std;

#include <boost/multiprecision/cpp_int.hpp>
#include <boost/multiprecision/cpp_dec_float.hpp>
using Int = boost::multiprecision::cpp_int;
using lld = boost::multiprecision::cpp_dec_float_100;

/*
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
*/
using ll = long long int;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using pld = pair<ld, ld>;
template <typename Q_type>
using smaller_queue = priority_queue<Q_type, vector<Q_type>, greater<Q_type>>;

constexpr ll MOD = (MOD_TYPE == 1 ? (ll)(1e9 + 7) : 998244353);
//constexpr ll MOD = 1;
constexpr int INF = (int)1e9 + 10;
constexpr ll LINF = (ll)4e18;
constexpr double PI = acos(-1.0);
constexpr double EPS = 1e-11;
constexpr int Dx[] = {0, 0, -1, 1, -1, 1, -1, 1, 0};
constexpr int Dy[] = {1, -1, 0, 0, -1, -1, 1, 1, 0};

#define REP(i, m, n) for (ll i = m; i < (ll)(n); ++i)
#define rep(i, n) REP(i, 0, n)
#define REPI(i, m, n) for (int i = m; i < (int)(n); ++i)
#define repi(i, n) REPI(i, 0, n)
#define MP make_pair
#define MT make_tuple
#define YES(n) cout << ((n) ? "YES" : "NO") << "\n"
#define Yes(n) cout << ((n) ? "Yes" : "No") << "\n"
#define possible(n) cout << ((n) ? "possible" : "impossible") << "\n"
#define Possible(n) cout << ((n) ? "Possible" : "Impossible") << "\n"
#define Yay(n) cout << ((n) ? "Yay!" : ":(") << "\n"
#define all(v) v.begin(), v.end()
#define NP(v) next_permutation(all(v))
#define dbg(x) cerr << #x << ":" << x << "\n";

inline void init_main()
{
  cin.tie(0);
  ios::sync_with_stdio(false);
  cout << setprecision(30) << setiosflags(ios::fixed);
}
template <typename T>
inline bool chmin(T &a, T b)
{
  if (a > b)
  {
    a = b;
    return true;
  }
  return false;
}
template <typename T>
inline bool chmax(T &a, T b)
{
  if (a < b)
  {
    a = b;
    return true;
  }
  return false;
}
inline ll CEIL(ll a, ll b)
{
  return (a + b - 1) / b;
}
template <typename A, size_t N, typename T>
inline void Fill(A (&array)[N], const T &val)
{
  fill((T *)array, (T *)(array + N), val);
}
template <typename T, typename U>
constexpr istream &operator>>(istream &is, pair<T, U> &p) noexcept
{
  is >> p.first >> p.second;
  return is;
}
template <typename T, typename U>
constexpr ostream &operator<<(ostream &os, pair<T, U> &p) noexcept
{
  os << p.first << " " << p.second;
  return os;
}
#pragma endregion

template <typename T>
vector<ll> RLE_simple(const vector<T> &v)
{
  vector<ll> res;
  T before;
  rep(i, v.size())
  {
    if (i == 0 || v[i] != before)
    {
      before = v[i];
      res.push_back(0);
    }
    (*res.rbegin())++;
  }
  return res;
}

void solve()
{
  ll a, b, c;
  cin >> a >> b >> c;
  if (a > c)
    swap(a, c);
  // 真ん中が最大
  ll t1 = 0;
  ll ai = a, bi = b, ci = c;
  if (bi <= ai)
  {
    t1 += ai - bi + 1;
    ai = bi - 1;
  }
  if (bi <= ci)
  {
    t1 += ci - bi + 1;
    ci = bi - 1;
  }
  if (ai == ci)
  {
    ai--;
    t1++;
  }

  if (ai <= 0 or ci <= 0)
    t1 = LINF;

  // 真ん中が最小
  ll t2 = 0;
  ai = a, bi = b, ci = c;
  if (ai == ci)
  {
    ai--;
    t2++;
  }

  if (bi >= ai or bi >= ci)
  {
    t2 += bi - (min(ai, ci) - 1);
    bi = min(ai, ci) - 1;
  }
  if (ai <= 0 or bi <= 0)
    t2 = LINF;
  ll ans = min(t1, t2);
  cout << (ans == LINF ? -1 : ans) << "\n";
}

int main()
{
  init_main();
  int testcase;
  cin >> testcase;
  rep(ti, testcase)
  {
    solve();
  }
}