class BIT:
    def __init__(self,sz):
        self.vals=[0 for i in range(sz+1)]
        self.size=sz
    def getVal(self,i):
        # answer vals[1-i]
        ret=0
        while i!=0:
            ret+=self.vals[i]
            i-=i&(-i)
        return ret
    def addVal(self,i,v):
        # add v to i , note i is in [1,size]
        while i<=self.size:
            self.vals[i]+=v
            i+=i&(-i)


N=int(raw_input())
A=map(int,raw_input().split())
S=list(set(A))
S.sort()
unZip={v:i+1 for i,v in enumerate(S)}
sameArray=[[] for i in range(len(S)+1)]
for i,a in enumerate(A):
    sameArray[unZip[a]].append(i)
ans = 0
bleft=BIT(len(S))
bright=BIT(len(S))
for a in A:
    bright.addVal(unZip[a],1)
for a in A:
    ai=unZip[a]
    bright.addVal(ai,-1)
    ans += bleft.getVal(ai-1)*bright.getVal(ai-1)
    ans += (bleft.getVal(len(S))-bleft.getVal(ai))* (bright.getVal(len(S))-bright.getVal(ai))
    bleft.addVal(ai,1)
for s in range(len(S)+1):
    for i in range(len(sameArray[s])-1):
        nleft=i+1
        nright=len(sameArray[s])-nleft
        ans -= (sameArray[s][i+1]-sameArray[s][i]-1)*nleft*nright
print ans