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

    bit = list(map(int, [0 for i in range(n+1)]))
    def get(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)
            
            
    
    buf = list(map(int, [0 for i in range(1024)]))
    a = 1
    for i in range(1, n+1):
        t = a * get(p[n-i])
        buf[i&1023] = t + buf[i&1023]
        add(p[n-i], 1)
        a = a * i

    ans = 1 + sum(buf)
    print(ans)
    
main()