//
//
//  Codeforces: ganariya
//  AtCoder: ganariya2525
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//include
//------------------------------------------
#include <vector>
#include <list>
#include <map>
#include <unordered_map>
#include <climits>
#include <set>
#include <unordered_set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <queue>
#include <random>
#include <complex>
#include <regex>
#include <locale>
#include <random>
#include <type_traits>

using namespace std;

#define SHOW_VECTOR(v) {std::cerr << #v << "\t:";for(const auto& xxx : v){std::cerr << xxx << " ";}std::cerr << "\n";}
#define SHOW_MAP(v){std::cerr << #v << endl; for(const auto& xxx: v){std::cerr << xxx.first << " " << xxx.second << "\n";}}

using LL = long long;

//~~~~~~~~~~~~~~~~~~~~~_(＾～＾ ｣ ∠)_~~~~~~~~~~~~~~~~~~~~~

int main() {

    LL N;
    cin >> N;

    vector<LL> a(N);
    for (int i = 0; i < N; i++)cin >> a[i];
    sort(a.begin(), a.end());

    vector<LL> b(N), c(N);
    for (int i = 0; i < N; i++) {
        if (i == 0 || i == N - 1) b[i] = 1;
        else b[i] = 2;
        if (i % 2 == 1) b[i] *= -1;
    }
    for (int i = 0; i < N; i++) {
        if (i == 0 || i == N - 1) c[i] = 1;
        else c[i] = 2;
        if (i % 2 == 0) c[i] *= -1;
    }

    sort(b.begin(), b.end());
    sort(c.begin(), c.end());

    LL ans1 = 0, ans2 = 0;
    for (int i = 0; i < N; i++) {
        ans1 += a[i] * b[i];
        ans2 += a[i] * c[i];
    }

    cout << max(ans1, ans2);

    return 0;
}










































Measured memory_bytes: 2560