Факултет

package fak;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Fakultet {

    public static int MinKazneni(int[] niza)
    {
        int N = niza.length;
        int kazneni = 0;
        for(int i = 0 ; i < N ; i++)
        {
            for(int j=i+1 ; j < N ; j++)
            {
                if(niza[i] > niza[j])
                {
                    int tmp = niza[i];
                    niza[i] = niza[j];
                    niza[j] = tmp;
                }

            }
        }//rastecki podredena

        int broj_domasni = N;
        for(int i = 0 ; i < N ; i++)
        {
            kazneni+=broj_domasni*niza[i];
            broj_domasni--;
        }
        return kazneni;
    }

    public static void main(String[] args) throws NumberFormatException, IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int N = Integer.parseInt(br.readLine());
        int a[] = new int[N];
        for(int i = 0 ; i < N ; i++)
        {
            a[i] = Integer.parseInt(br.readLine());
        }

        System.out.println(MinKazneni(a));
        br.close();
    }

}