#include <fstream>
using namespace std;

int compare(const void* first, const void* second)
{
    if (*(int*)first <  *(int*)second) return -1;
    if (*(int*)first >  *(int*)second) return 1;
    return 0;
}

int main()
{
    // Reading data
    int N = 0;
    fstream file_stream{ "input.txt", ios::in };
    file_stream >> N;
    int* values = new int[N];
    for (int i = 0; i < N; i++)
        file_stream >> values[i];
    file_stream.close();

    // Sort
    qsort(values, N, sizeof(*values), &compare);

    int begin = 0, price = 0;
    while (begin < N - 1)
    {
        values[begin + 1] += values[begin];
        price += values[begin + 1];
        begin++;
        for(int i = begin; i < N - 1 && values[i] > values[i + 1]; i++)
        {
            int tmp = values[i];
            values[i] = values[i + 1];
            values[i + 1] = tmp;
        }
    }
    delete[] values;

    // Writing result
    file_stream.open("output.txt", ios::out);
    file_stream << price;
    file_stream.close();
}