#include <bits/stdc++.h>
using namespace std;
using lint = long long;
template<class T = int> using V = vector<T>;
template<class T = int> using VV = V< V<T> >;

int main() {
  cin.tie(nullptr); ios::sync_with_stdio(false);
  int n; cin >> n;
  V<lint> v;
  while (n--) {
    lint a; cin >> a;
    for (lint e : v) {
      a = min(a, a ^ e);
    }
    if (a) {
      v.push_back(a);
    }
  }
  cout << (1LL << v.size()) << '\n';
}