https://www.acmicpc.net/problem/11399
주어진 숫자를 오름차순으로 만들 것
import sys
fast_input = sys.stdin.readline
def fast_print(v):
sys.stdout.write(str(v) + "\n")
N = int(fast_input())
num_list = list(map(int,fast_input().split()))
num_list.sort()
sum = 0
temp_sum = 0
for num in num_list:
temp_sum+=num
sum += temp_sum
fast_print(sum)