#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <cmath>
#include <iomanip>
#include <stack>
#include <queue>
#include <numeric>
#include <map>
#include <unordered_map>
#include <set>
#include <fstream>
#include <chrono>
#include <random>
#include <bitset>
#define rep(i,n) for(int i=0;i<(n);i++)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) ((int)(x).size())
#define pb push_back
#define mod 1000000007
using ll = long long;
using namespace std;
ll gcd(ll a, ll b) {return b?gcd(b,a%b):a;}
ll lcm(ll a, ll b) {return a/gcd(a,b)*b;}

int main(){
  int T; cin >> T;
  rep(t,T){
    int A, B, C; cin >> A >> B >> C;
    int ans = 0;
    if(A == B && B == C){
      ans = A-2>0?3:-1;
    }
    else{
      // B is max
      int a = A, b = B, c = C;
      int ans1 = 0;
      ans1 += max(0,a-(b-1));
      a = min(a,b-1);
      ans1 += max(0,c-(b-1));
      c = min(c,b-1);
      if(a==c) {
        ans1++;a--;
      }
      if(a<=0) ans1 = 2e9+5;
      // B is min
      a = A; b = B; c = C;
      int ans2 = 0;
      ans2 += max(0,b-(min(a,c)-1));
      b = min(b,min(a,c)-1);
      if(b<=0) ans2 = 2e9+5;
      else if(a==c) {
        ans2 ++;
        a--;
        if(a==b){
          ans2++;
          b--;
        }
        if(b<=0) ans2 = 2e9+5;
      }
      ans = min(ans1,ans2);
      if(ans == 2e9+5) ans = -1;
    }
    cout << ans << endl;
  }
  return 0;
}