/**
 *   @FileName	a.cpp
 *   @Author	kanpurin
 *   @Created	2020.06.20 16:32:07
**/

#include "bits/stdc++.h" 
using namespace std; 
typedef long long ll;

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());
    ll ans = 0;
    ll x = 0;
    ll y = 0;
    ll m = a[0];
    for (int i = 1; i < n-i; i++) {
        y += (a[i] - m) * i;
        x -= (a[i] - m) * (i - 1);
        x += a[n-i] - a[i];
        ans = max(ans,x - y);
        m = a[i];
    }
    cout << ans << endl;
    return 0;
}