[백준/Java] 11399 ATM

import java.util.StringTokenizer;
import java.util.Arrays;

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

class Main {
    public static void main(String[] args) throws IOException{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        
        int N = Integer.parseInt(br.readLine());

        StringTokenizer st = new StringTokenizer(br.readLine());

        int[] arr = new int[N];

        for(int i=0;i<N;i++)
            arr[i] = Integer.parseInt(st.nextToken());

        Arrays.sort(arr);

        int sum = 0;
        int result = 0;

        for(int n : arr) {
            sum += n;
            result += sum;
        }
        
        System.out.println(result);
    }
}