#include <algorithm>
#include <bitset>
#include <cassert>
#include <cctype>
#include <chrono>
#define _USE_MATH_DEFINES
#include <cmath>
#include <cstdio>
#include <cstring>
#include <ctime>
#include <deque>
#include <functional>
#include <iostream>
#include <iterator>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <string>
#include <tuple>
#include <utility>
#include <vector>
using namespace std;

#define FOR(i,m,n) for(int i=(m);i<(n);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(),(v).end()

const int INF = 0x3f3f3f3f;
const long long LINF = 0x3f3f3f3f3f3f3f3fLL;
const double EPS = 1e-8;
const int MOD = 1000000007; // 998244353;
const int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1};
/*-------------------------------------------------*/
int main() {
  cin.tie(0); ios::sync_with_stdio(false);
  // freopen("input.txt", "r", stdin);

  int n; cin >> n;
  vector<long long> y(n); REP(i, n) cin >> y[i];
  sort(ALL(y));
  if (y.front() == y.back()) {
    cout << 1 << '\n';
    return 0;
  }
  vector<long long> cum(n + 1, 0);
  REP(i, n) cum[i + 1] = cum[i] + y[i];
  long long ans = LINF;
  FOR(i, 1, n) {
    long long sum = 0;
    int left = (0 + i - 1) / 2;
    sum += y[left] * left - (cum[left] - cum[0]);
    sum += (cum[i] - cum[left]) - y[left] * (i - left);
    int right = (i + n - 1) / 2;
    sum += y[right] * (right - i) - (cum[right] - cum[i]);
    sum += (cum[n] - cum[right]) - y[right] * (n - right);
    ans = min(ans, sum);
  }
  cout << ans << '\n';
  return 0;
}