#include <bits/stdc++.h>
using namespace std;
 
void solve()
{
    int a, b, c;
    cin >> a >> b >> c;
 
    double x[3];
    x[0] = a, x[1] = b, x[2] = c;
 
    // double avg_d = (x[0] + x[1] + x[2]) / 3;
 
    int avg = ceil((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]++;
    }
 
    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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8
3 3 4
10 20 30
5 5 5
2 4 3
1 1000000000 1000000000
1 1000000000 999999999
3 2 5
3 2 6