#include<iostream>
int main(){
  int N;
  long A[300001];
  long result = 0;
  std :: cin >> N;
  for(int i = 1; i<=N;i++){
    std::cin >> A[i];
  }
  for(int i = 1; i<=N - 1;i++){
    for(int j = i+1;j<=N;j++){
      result += (A[i]^A[j])
    }
  }
  result = result % (1000000000+7);
  std :: cout << result;
  return 0;
}