#include <bits/stdc++.h>
using namespace std;
int binpow(int a, int b) {
  if (b == 0) return 1;
  int res = binpow(a, b / 2);
  if (b % 2)
    return res * res * a;
  else
    return res * res;
}
long long gcd(long long a, long long b) {
  if (b == 0) return a;
  return gcd(b, a % b);
}
string to_upper(string a) {
  for (int i = 0; i < (int)a.size(); ++i)
    if (a[i] >= 'a' && a[i] <= 'z') a[i] -= 'a' - 'A';
  return a;
}
string to_lower(string a) {
  for (int i = 0; i < (int)a.size(); ++i)
    if (a[i] >= 'A' && a[i] <= 'Z') a[i] += 'a' - 'A';
  return a;
}
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int n;
  long long ans = 0, MOD = 1000000007;
  cin >> n;
  long long a[n];
  for (int i = 0; i < n; ++i) {
    cin >> a[i];
  }
  for (int i = 0; i < n - 1; ++i) {
    for (int j = i + 1; j < n; ++j) {
      ans += (a[i] ^ a[j]);
      ans %= MOD;
    }
  }
  cout << ans;
  return 0;
}
