#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using P = pair<int, int>;

const int INF = 1e9;
const int MOD = 1e9 + 7;

// 4近傍、8近傍
int dx[] = {1, 0, -1, 0, 1, -1, -1, 1};
int dy[] = {0, 1, 0, -1, 1, 1, -1, -1};

int flag[50000];

int main() {
  int N;
  cin >> N;
  int a[N];
  for (int i = 0; i < N; i++) cin >> a[i];

  flag[0] = 1;
  for (int i = 0; i < N; i++) {
    for (int j = 50000; j >= 0; j--) {
      if (flag[j]) {
        flag[j^a[i]] = 1;
      }
    }
  }

  cout << accumulate(flag, flag + 50000, 0) << endl;
  return 0;
}