#include <iostream>
#include <iomanip>
#include <vector>
#include <utility>
#include <map>
#include <algorithm>
#include <queue>
#include <cmath>
#include <numeric>
#include <climits>

using namespace std;
struct aaa{aaa(){cin.tie(nullptr); ios::sync_with_stdio(false); cout<<fixed<<setprecision(20);};}aaa;

typedef long long int64;


int main() {
    int t;
    cin >> t;
    for (int i=0; i<t; i++) {
        int a,b,c;
        int ans = INT_MAX;
        cin >> a >> b >> c;

        if ((a<b&&c<b) || (b<a&&b<c)) {
            cout << 0 << endl;
            continue;
        }

        if (a == b && b == c && a >= 3) {
            cout << 3 << endl;
            continue;
        }

        if (a > c) swap(a,c);

        if (a == 1 && b == 2) {
            cout << -1 << endl;
            continue;
        }

        if (a != 1) {
            ans = min(ans, abs(b-a) + 1);
        }

        ans = min(ans, abs(b-c) + 1 + (b-1==a? 1 : 0));
        cout << ans << endl;
    }
}