#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <climits>
#include <cmath>
#include <complex>
#include <map>
#include <set>
#include <vector>
#include <stack>
#include <queue>
#include <bitset>
#include <algorithm>
#include <numeric>
#include <functional>
#include <cassert>
#include <iomanip>
using namespace std;

#define Rep(b, e, i) for(int i = b; i <= e; i++)
#define Repr(e, b, i) for(int i = e; i >= b; i--)
#define rep(n, i) Rep(0, n-1, i)
#define repr(n, i) Repr(n-1, 0, i)
#define all(v) (v).begin(), (v).end()
#define pb(v) push_back(v)
#define uniq(v) (v).erase(unique(all(v)),(v).end())
#define bitcnt(x) __builtin_popcount(x)
#define fst first
#define snd second
#define Pqaz(T) priority_queue<T,vector<T>,greater<T>>
#define Pqza(T) priority_queue<T>
#define put(x) cout << x;
#define putsp(x) cout << x << ' ';
#define putln(x) cout << x << endl;
#define ENJYU std::ios::sync_with_stdio(false);std::cin.tie(0);

typedef long long ll;
typedef pair<ll, ll> llP;
typedef pair<int, int> intP;
typedef complex<double> comp;
typedef vector <int> vec;
typedef vector <ll> vecll;
typedef vector <double> vecd;
typedef vector <intP> vecP;
typedef vector <llP> vecllP;
typedef vector <vec> mat;
typedef vector <vecll> matll;
typedef vector <vecll> matd;

//vector の中身を出力
template <class T>ostream &operator<<(ostream &o,const vector<T>&v)
{o<<"{";for(int i=0;i<(int)v.size();i++)o<<(i>0?", ":"")<<v[i];o<<"}";return o;}

void solve(void){

	int N;
	cin >> N;

	vecll as(N);
	rep(N, i) cin >> as[i];

	ll ans = 1;

	rep(N, n)
	{
		if (as[n])
		{
			ans *= 2;

			//最下位のbit
			int b = 0;
			while(as[n] >> (b+1) ^ 1) b++;

			rep(N, nn)
			{
				if (as[nn] >> b & 1 && n != nn)
				{
					as[nn] ^= as[n];
				}
			}
		}
	}

	cout << ans << endl;
}

int main(void){
	solve();
	//cout << "yui(*-v・)yui" << endl;
	return 0;
}