Факултет

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

public class Homework {

    static int minBrojKazneni(int a[]) {
        // Vasiot kod tuka
        int tmp = 0, sum = 0, tmpSum = 0;

        for (int i = 0; i < a.length - 1; i++)
            for (int j = i; j < a.length; j++) {
                if (a[i] > a[j]) {
                    tmp = a[i];
                    a[i] = a[j];
                    a[j] = tmp;
                }
            }
        for (int i = 0; i < a.length; i++) {
            tmpSum = 0;
            for (int j = 0; j < i + 1; j++)
                tmpSum += a[j];
            sum += tmpSum;
        }
        return sum;
    }

    public static void main(String[] args) throws Exception {
        int i;

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int N = Integer.parseInt(br.readLine());
        int a[] = new int[N];

        for (i=0;i<N;i++)
            a[i] = Integer.parseInt(br.readLine());

        int rez = minBrojKazneni(a);

        System.out.println(rez);

        br.close();
    }
}