using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var n = NN;
        var y = NList;
        Array.Sort(y);
        WriteLine(Star(n, y));
    }
    static long Star(int n, int[] y)
    {
        if (y[0] == y[^1])
        {
            return 1;
        }
        var cum = new long[n + 1];
        for (var i = 0; i < n; ++i) cum[i + 1] = cum[i] + y[i];
        var ans = long.MaxValue;
        for (var sl = 1; sl < n; ++sl)
        {
            var fc = sl / 2;
            var sc = (n + sl) / 2;
            ans = Math.Min(ans, (long)y[fc] * fc - cum[fc] + cum[sl] - cum[fc] - (long)y[fc] * (sl - fc) + (long)y[sc] * (sc - sl) - cum[sc] + cum[sl] + cum[n] - cum[sc] - (long)y[sc] * (n - sc));
        }
        return ans;
    }
}