#include<bits/stdc++.h>

using namespace std;
#define rep(i, x, limit) for (int i = (int)x; i < (int)limit; i++)
#define el '\n'
#define YesNo(cond) cout << ((cond) ? "Yes" : "No") << el
#define co(N) cout << N << el
#define rall(x) x.rbegin(), x.rend()
using ll = long long;
using vi = vector<int>;
using str = string;
int main() {
    int T;
    cin >> T;
    vi H(5);
    rep(i,0,T){
        rep(i,0,5) cin >> H[i];
        sort(rall(H));
        cout << H[0] - H[4] << endl;
    }
}