#include <iostream>
#include <vector>
#include <map>
#include <algorithm>

class BitSum {
public:
    BitSum(long long n) : _n(n+1), _table(_n, 0), _origin(n, 0) {}

    long long operator[](long long item) const {
        return _origin[item];
    }

    void add(long long i, long long x) {
        _origin[i] += x;
        i += 1;
        while (i < _n) {
            _table[i] += x;
            i += i & -i;
        }
    }

    long long sum(long long i) const {
        i += 1;
        long long res = 0;
        while (i > 0) {
            res += _table[i];
            i -= i & -i;
        }
        return res;
    }

private:
    long long _n;
    std::vector<long long> _table;
    std::vector<long long> _origin;
};

int main() {
    long long n;
    std::cin >> n;

    std::vector<long long> aa(n);
    for (long long i = 0; i < n; i++) {
        std::cin >> aa[i];
    }

    std::vector<long long> dec(aa);
    std::sort(dec.begin(), dec.end());
    dec.erase(std::unique(dec.begin(), dec.end()), dec.end());

    std::map<long long, long long> enc;
    for (long long i = 0; i < dec.size(); i++) {
        enc[dec[i]] = i;
    }

    for (long long i = 0; i < n; i++) {
        aa[i] = enc[aa[i]];
    }

    long long ans = 0;
    for (long long k = 0; k < 2; k++) {
        BitSum left(n), right(n), pair(n);

        for (long long i = 0; i < n; i++) {
            right.add(aa[i], 1);
        }

        for (long long i = 1; i < n-1; i++) {
            long long a = aa[i-1];
            long long l = left[a];
            long long r = right[a];
            pair.add(a, r-l-1);
            left.add(a, 1);
            right.add(a, -1);
            a = aa[i];
            ans += left.sum(a-1) * right.sum(a-1) - pair.sum(a-1);
        }

        for (long long i = 0; i < n; i++) {
            aa[i] = n-1 - aa[i];
        }
    }

    std::cout << ans << std::endl;

    return 0;
}