#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  scanf("%d", &n);
  vector<long long> a(n);
  for (int i = 0; i < n; ++i) {
    scanf("%lld", &a[i]);
  }
  long long ans = 0;
  for (int i = 0; i < n - 1; ++i) {
    for (int j = i + 1; j < n; ++j) {
      ans = (ans + (a[i] ^ a[j])) % 1000000007;
    }
  }
  printf("%lld", ans);
  return 0;
}
