def compress(As):
    '''とびとびの値のリストを連続する値のリストに変換する。
    '''
    val2idx = {a: i for i, a in enumerate(sorted(set(As)))}
    return [val2idx[a] for a in As]

def add_count_f(val, data, size):
    '''セグメントツリーへの要素 val を追加し、
    val 未満の要素の個数と、val 超の要素の個数を返す。
    '''
    pos = size + val
    count = 0
    while pos:
        if pos & 1:
            count += data[pos-1]
        data[pos] += 1
        pos >>= 1
    return count, data[1] - count - data[size + val]

def count_aba2(As):
    maxA = max(As)
    freq = [-1] * (maxA + 1)
    for a in As:
        freq[a] += 1
    posList = {i:[] for i in xrange(maxA + 1) if freq[i]}
    for i, a in enumerate(As):
        if freq[a]:
            posList[a].append(i)
    count = 0
    for poss in posList.values():
        n = len(poss)
        for i in range(1, n):
            count += (poss[i] - poss[i-1] - 1) * i * (n-i)
    return count


N = int(raw_input())
As = compress(list(map(int, raw_input().split())))
size = 1 << (len(bin(N)) - 2)
segL = [0] * (size * 2)
segR = [0] * (size * 2)
belowL = [0] * N
aboveL = [0] * N
result = 0
for i, a in enumerate(As):
    below, above = add_count_f(a, segL, size)
    belowL[i] = below
    aboveL[i] = above
for i, a in enumerate(As[::-1], 1):
    belowR, aboveR = add_count_f(a, segR, size)
    result += belowL[-i] * belowR + aboveL[-i] * aboveR

# 左右が同じ値の疑似門松列の個数を差し引く
result -= count_aba2(As)
print(result)