#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  long long arr[n];
  for (int i = 0; i < n; i++) cin >> arr[i];
  long long sum = 0;
  for (int i = 0; i < n; i++) {
    for (int j = i + 1; j < n; j++) {
      sum += arr[i] ^ arr[j];
      sum = sum % 1000000007;
    }
  }
  cout << sum << "\n";
  return 0;
}
