#include <bits/stdc++.h>
using namespace std;
const long long MAXN = (long long)((1e5) + 100);
long long gcd(long long a, long long b) {
  if (a == 0) return b;
  return gcd(b % a, a);
}
long long max(long long a, long long b) {
  if (a > b)
    return a;
  else
    return b;
}
long long min(long long a, long long b) {
  if (a < b)
    return a;
  else
    return b;
}
long long cbrt(long long x) {
  long long lo = 1, hi = min(2000000ll, x);
  while (hi - lo > 1) {
    long long mid = (lo + hi) / 2;
    if (mid * mid * mid < x) {
      lo = mid;
    } else
      hi = mid;
  }
  if (hi * hi * hi <= x)
    return hi;
  else
    return lo;
}
const long long dx[4] = {-1, 1, 0, 0};
const long long dy[4] = {0, 0, -1, 1};
const long long N = (long long)(1e6 + 5);
signed main() {
  ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);
  long long n;
  cin >> n;
  vector<long long> a(n);
  for (long long i = 0; i < n; i++) {
    cin >> a[i];
  }
  long long res = 0;
  for (long long i = 0; i < n - 1; i++) {
    for (long long j = i + 1; j < n; j++) {
      res += (a[i] ^ a[j]) % (long long)1000000007;
    }
  }
  cout << res % (long long)1000000007;
  return 0;
}
