#include <bits/stdc++.h>
using namespace std;
 
void solve()
{
    int x[3];
    cin >> x[0] >> x[1] >> x[2];
 
    // int avg = (x[0] + x[1] + x[2]) / 3;
 
    // for (int i = 0; i < 3; i++)
    // {
    //     if (x[i] > avg)
    //         x[i]--;
    //     else if (x[i] < avg)
    //         x[i]++;
    // }
 
    sort(x, x + 3);
 
    if (x[0] < x[1])
        x[0]++;
    if (x[2] > x[1])
        x[2]--;
 
    int ans = abs(x[0] - x[1]) + abs(x[0] - x[2]) + abs(x[1] - x[2]);
 
    cout << ans << "\n";
}
 
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
 
    int t;
    cin >> t;
 
    while (t--)
    {
        solve();
    }
}

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