#include <bits/stdc++.h>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;
typedef unsigned long long ull;

const static ll INF = (ll)(1e15);

bool isKadomatsu(int A, int B, int C){
  if(A<=0 || B<=0 || C<=0) return false;
  map<int,int> m;
  m[A] = 1;
  m[B] = 1;
  m[C] = 1;
  if(m.size() != 3) return false;
  vector<int> v{A,B,C};
  sort(ALLOF(v));
  return (v[1]==A || v[1]==C);
}

ll check(int A, int B, int C, int tA, int tB, int tC){
  if(!isKadomatsu(tA, tB, tC)) return INF;
  if(A<tA || B<tB || C<tC) return INF;

  ll ret = 0;
  ret += A-tA;
  ret += B-tB;
  ret += C-tC;
  return ret;
}

ll solve(int A, int B, int C){
  map<int,int> cand;
  for(int i=-2; i<=2; i++) cand[A+i] = 1;
  for(int i=-2; i<=2; i++) cand[B+i] = 1;
  for(int i=-2; i<=2; i++) cand[C+i] = 1;
  vector<int> v;
  FOR(it,cand) v.push_back(it->first);

  ll ret = INF;
  rep(i,v.size()){
    rep(j,v.size()){
      rep(k,v.size()){
        ret = min(ret, check(A,B,C,v[i],v[j],v[k]));
      }
    }
  }
  
  if(ret == INF) return -1;
  return ret;
}

int main(){
  int T;
  cin >> T;

  rep(t,T){
    int A, B, C;
    cin >> A >> B >> C;
    cout << solve(A, B, C) << endl;
  }
  
  return 0;
}