#include <bits/stdc++.h>
const int MGN = 10;
const int ARY_SZ_MAX = (int)1e7;
using namespace std;
using ll = long long;
using ull = unsigned long long;
using vi = vector<int>;
using vvi = vector<vi>;
using vc = vector<char>;
using vvc = vector<vc>;
using vb = vector<bool>;
using vvb = vector<vb>;
using vl = vector<ll>;
using vvl = vector<vl>;
using vd = vector<double>;
using vs = vector<string>;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using psl = pair<string, ll>;
int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  const ll MOD = (ll)1e9 + 7;
  int N;
  cin >> N;
  vl A(N);
  for (int i = int(0); i < int(N); ++i) cin >> A[i];
  ll ans = 0;
  for (int i = int(0); i < int(N - 1); ++i) {
    for (int j = int(i + 1); j < int(N); ++j) {
      ans += A[i] ^ A[j];
      ans %= MOD;
    }
  }
  cout << ans << endl;
  return 0;
}
