n = int(input())
a = list(map(int,input().split()))

a.insert(0,0)
b = sorted(a)
sum = 0
for i in range(2,n+1):
    q = int(b[i-1])
    w = int(b[i])
    sum += (q+w)
    b[i] = b[i-1] + b[i]
print(sum)