#include <bits/stdc++.h>
using namespace std;
long long powm(long long a, long long b) {
  long long res = 1;
  while (b) {
    if (b & 1) res = (res * a) % 1000000007;
    a = (a * a) % 1000000007;
    b >>= 1;
  }
  return res;
}
void solve() {
  long long n;
  cin >> n;
  long long a[n + 1];
  for (long long i = 1; i <= n; i++) {
    cin >> a[i];
  }
  long long ans = 0;
  for (long long i = 1; i <= n; i++) {
    for (long long j = i + 1; j <= n; j++) {
      ans += (a[i] ^ a[j]);
      ans %= 1000000007;
    }
  }
  cout << ans << endl;
}
signed main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  ;
  long long t = 1;
  for (long long i = 1; i <= t; i++) {
    solve();
  }
  return 0;
}
