#include <bits/stdc++.h>

#define int long long

using namespace std;

signed main() {
    ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
    int t;
    cin >> t;
    while(t--){
        int a,b,c;
        cin >> a >> b >> c;
        cout << max(a, max(b, c)) - min(a, min(b, c)) << '\n';

    }
}