#include <bits/stdc++.h>
const int INF = 2147483647;
const long long int MOD = 1000000007;
using namespace std;
using ll = long long;
using P = pair<int, int>;
template <class T>
inline bool chmin(T& a, T b) {
  if (a > b) {
    a = b;
    return true;
  }
  return false;
}
template <class T>
inline bool chmax(T& a, T b) {
  if (a < b) {
    a = b;
    return true;
  }
  return false;
}
int main() {
  ll n;
  cin >> n;
  vector<ll> a(n, 0);
  for (long long i = 0; i < (n); ++i) cin >> a[i];
  ll res = 0;
  for (long long i = 0; i < (n); ++i) {
    for (long long j = (i); j < (n); j++) {
      res += (a[i] ^ a[j]) % MOD;
      res %= MOD;
    }
  }
  cout << res << endl;
  return 0;
}
