#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  int N;
  cin >> N;
  vector<ll> Y(N);
  for (int i = 0; i < N; i++) {
    cin >> Y[i];
  }
  if (N == 2) {
    if (Y[0] == Y[1]) {
      cout << 1 << "\n";
    } else {
      cout << 0 << "\n";
    }
    return 0;
  }
  sort(Y.begin(), Y.end());
  if (Y[0] == Y[N - 1]) {
    cout << "1\n";
    return 0;
  }
  if (Y[0] == Y[N - 2]) {
    cout << "0\n";
    return 0;
  }
  ll ans = pow(10, 15);
  ll S[N + 1]{};
  for (int i = 0; i < N; i++) {
    S[i + 1] += S[i] + Y[i];
  }
  for (int i = 0; i < N - 1; i++) {
    int m1 = i / 2;
    int m2 = (N + i) / 2;
    ll cost = (m1 + 1) * Y[m1] - S[m1 + 1] + S[i + 1] - S[m1 + 1] - (i - m1) * Y[m1];
    cost += (m2 - i) * Y[m2] - (S[m2 + 1] - S[i + 1]) + (S[N] - S[m2 + 1]) - (N - 1- m2) * Y[m2];
    ans = min(ans, cost);
  }
  cout << ans << "\n";
  return 0;
}