import sys
sys.set_int_max_str_digits(15000)
N = int(input())
P = list(map(int,input().split()))
BIT = [0 for i in range(N + 1)]
def SUM(X):
    R = 0
    while X > 0:
        R += BIT[X]
        X -= (X & -X)
    return R
def ADD(X, Y):
    if(X == 0):
        return
    while X <= N:
        BIT[X] += Y
        X = X + (X & -X)
R = 1
X = 1
for i in range(1, N + 1):
    R += SUM(P[N - i]) * X
    ADD(P[N - i], 1)
    X *= i
print(R)