#include <iostream>
#include <vector>

using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n;
    cin >> n;

    vector<int> nums(n);
    for (int i = 0; i < n; ++i) {
        cin >> nums[i];
    }

    long long result = 0;
    for (int i = 0; i < n; ++i) {
        int highestBit = 0;
        while ((nums[i] >> highestBit) & 1 == 0) {
            ++highestBit;
        }
        for (int j = i + 1; j < n; ++j) {
            if (((nums[j] >> highestBit) & 1) && (nums[i] & nums[j]) > (nums[i] ^ nums[j])) {
                ++result;
            }
        }
    }

    cout << result << endl;
    return 0;
}