def main():
    n = int(input())
    p = list(map(int,input().split()))

    bit = list(map(int, [0 for i in range(n+1)]))
    def sum(x):
        res = 0
        while x > 0:
            res = res + bit[x]
            x = x - (x&-x)
        return res
        
    def add(x, y):
        if(x == 0):
            return
        while x <= n:
            bit[x] = bit[x] + y
            x = x + (x&-x)
            
            
    ans = 1
    buf = 0
    x = 1
    for i in range(1, n+1):
        t = x * sum(p[n-i])
        buf = t + buf
        if i & 1023 == 0:
            ans = buf + ans
            buf = 0
        add(p[n-i], 1)
        x = x * i

    print(ans + buf)
    
main()