import java.util.*;
public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
    long[] A = new long[N];
    for (int i = 0; i < N; i++) {
      A[i] = sc.nextLong();
    }
    sc.close();
    
    long ans = 0;
    for (int i = 0; i < N - 1; i++) 
      for (int j = i + 1; j < N; j++) {
        ans += A[i] ^ A[j];
        ans %= 1000000007;
      }
    System.out.println(ans);
  }
}
