#pragma comment (linker, "/STACK:256000000")
#define  _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <algorithm>
#include <utility>
#include <functional>
#include <cstring>
#include <queue>
#include <stack>
#include <math.h>
#include <iterator>
#include <vector>
#include <string>
#include <set>
#include <math.h>
#include <iostream>
#include <random>
#include<map>
#include <iomanip>
#include <time.h>
#include <stdlib.h>
#include <list>
#include <typeinfo>
#include <list>
#include <set>
#include <cassert>
#include<fstream>
#include <unordered_map>
#include <unordered_set>
#include <cstdlib>
#include <complex>
#include <cctype>
#include <bitset>

using namespace std;
typedef string::const_iterator State;
const long double Ma_PI = 3.1415926535897932384626433832795028841971L;
#define eps 1e-15L
#define LONG_INF 2000000000000000000LL
#define GOLD 1.61803398874989484820458
#define MAX_MOD 1000000007LL
#define GYAKU 500000004LL

#define MOD 998244353LL
#define seg_size 262144*2
#define pb push_back
#define mp make_pair
typedef long long ll;
#define REP(a,b) for(long long a = 0;a < b;++a)
#define ALL(x) (x).begin(),(x).end()
void init() {
    iostream::sync_with_stdio(false);
    cout << fixed << setprecision(100);
}
unsigned long xor128() {
    static unsigned long x = 123456789, y = 362436069, z = 521288629, w = 88675123;
    unsigned long t = (x ^ (x << 11));
    x = y; y = z; z = w;
    return (w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)));
}
typedef struct BigInt {
    string s = "0";
    BigInt operator +(BigInt obj) {
        string c;
        while (max(obj.s.length(), this->s.length()) + 1 > c.length()) {
            c.pb('0');
        }
        for (int q = 0; q < obj.s.length(); ++q) {
            c[c.length() - 1 - q] = obj.s[obj.s.length() - q - 1];
        }
        for (int q = 0; q < this->s.length(); ++q) {
            c[c.length() - 1 - q] += this->s[this->s.length() - 1 - q] - '0';
            if (c[c.length() - 1 - q] > '9') {
                c[c.length() - 2 - q]++;
                c[c.length() - 1 - q] -= 10;
            }
        }
        if (c.front() == '0') {
            c.erase(c.begin());
        }
        return BigInt{ c };
    }
    BigInt operator *(BigInt obj) {
        BigInt ans;
        for (int i = this->s.length() - 1; i >= 0; --i) {
            REP(q, this -> s[i] - '0') {
                ans = ans + obj;
            }
            obj.s.pb('0');
        }
        return ans;
    }
}BigInt;

#define int ll
void solve() {
    vector<int> inputs;
    REP(q, 3) {
        int a;
        cin >> a;
        inputs.pb(a);
    }
    if (inputs[0] > inputs[2]) swap(inputs[0], inputs[2]);
    int ans = 0;
    if (inputs[0] == inputs[2]) {
        ans++;
        inputs[0]--;
        if (inputs[0] <= 0) {
            cout << -1 << endl;
            return;
        }
    }
    if (!(inputs[2] < inputs[1] || inputs[0] > inputs[1])) {
        int tmp_ans = 4e9;
        if (inputs[0] != 1) {
            tmp_ans = min(inputs[1] - inputs[0] + 1, tmp_ans);
            //inputs[1] become inputs[0] - 1
        }
        if (inputs[0] + 1 != inputs[1]) {
            tmp_ans = min(tmp_ans, inputs[2] - inputs[1] + 1);
            //inputs[2] become inputs[1] - 1
        }
        if (inputs[0] != 1) {
            tmp_ans = min(tmp_ans, inputs[2] - inputs[1] + 1 + 1);
            //inputs[2] become inputs[1] - 1,inputs[0] become inputs[0]-1
        }
        if (tmp_ans == 4e9) {
            cout << -1 << endl;
            return;
        }
        ans += tmp_ans;
    }
    REP(q, 3) {
        if (inputs[q] <= 0) {
            cout << -1 << endl;
            return;
        }
    }
    cout << ans << endl;
}

#undef int
int main() {
    init();
    int t;
    cin >> t;
    REP(tea,t)
    solve();
}