#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
typedef long long ll;
typedef pair<int,int> pp;
const int INF = 1e9;
const int MOD = 1000000007;


int main() {
    int t;
    cin >> t;
    auto f = [](int cen,int l,int r){
        int res = 0;
        if( l > r) swap(l,r);
        if(l == r && r == cen){
            l -= 2;
            cen --;
            res += 3;
        }
        if(l == r){
             l -= 2;
             res += 2;
         }
         if(l == r-1){
              l --;
              res += 1;
         }
         if( r <= cen){
            res += cen - r + 1;
             cen = r -1;
         }
         if( cen <= l){
             res += l - cen + 1;
             l = cen - 1;
         }
         if( cen <= 0 || l <= 0 || r <= 0){
             return -1;
         }else{
             return res;
         }
    };

    rep(i,t){
        int a,b,c;
        cin >> a >> b >> c;
        int res_a = f(a,b,c);
        int res_b = f(c,a,b);
        if(res_a == -1 && res_b == -1) cout << -1 << endl;
        else if(res_a == -1) cout << res_b << endl;
        else if(res_b == -1) cout << res_a << endl;
        else cout << min(res_a,res_b) << endl;
    }

    
    return 0;

    
}