use std::io::Read;

fn run() {
    let mut s = String::new();
    std::io::stdin().read_to_string(&mut s).unwrap();
    let mut it = s.trim().split_whitespace();
    let n: usize = it.next().unwrap().parse().unwrap();
    let mut a: Vec<i64> = it.map(|s| s.parse().unwrap()).collect();
    a.sort();
    let mut sum = a.clone();
    sum.push(0);
    for i in (0..n).rev() {
        sum[i] += sum[i + 1];
    }
    let mut ans = 0;
    for mid in 1..n {
        let f = |x: usize| {
            let len = mid - x;
            sum[n - len] + sum[x] - sum[mid + 1] - (2 * len + 1) as i64 * a[mid]
        };
        let mut l = 0;
        let mut r = mid;
        while r - l > 10 {
            let ll = (2 * l + r) / 3;
            let rr = (l + 2 * r) / 3;
            if f(ll) <= f(rr) {
                l = ll;
            } else {
                r = rr;
            }
        }
        for i in l..r {
            ans = std::cmp::max(ans, f(i));
        }
    }
    println!("{}", ans);
}

fn main() {
    run();
}