#include <bits/stdc++.h>
using namespace std;

int main() {
    int n;
    cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    sort(a.begin(), a.end());
    int64_t s = 0, ans = 0;
    for (int64_t i = 0; i < (n - 1) / 2; i++) {
        s += a[i] + a[n - 1 - i];
        ans = max(ans, s - 2 * (i + 1) * a[i + 1]);
    }
    cout << ans << endl;
}