#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < n; ++i)
typedef long long ll;
using namespace std;

int main() {
    cin.tie(0)->sync_with_stdio(0);

    int N;
    cin >> N;
    vector<int> A(N);
    rep(i, N) cin >> A[i];

    ll ans = 0;
    rep(i, 28) {
        ll cnt = 0, cur = 0;
        for (int j = N - 1; j >= 0; --j) {
            if (A[j] & (1 << i))
                cur = N - j;
            cnt += cur;
        }
        ans += (1 << i) * cnt;
    }
    cout << ans << "\n";

    return 0;
}