#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <cmath>
#include <string>
#include <vector>
#include <algorithm>
#include <queue>
#include <map>
#include <functional>
#include <set>
#include <numeric>
#include <stack>
#include <utility>
#include <time.h>
//#include "util.h"

using namespace std;
typedef unsigned uint;
typedef long long ll;
typedef unsigned long long ull;



//呪文
template <typename _KTy, typename _Ty> ostream& operator << (ostream& ostr, const pair<_KTy, _Ty>& m) { cout << "{" << m.first << ", " << m.second << "}"; return ostr; }
template <typename _KTy, typename _Ty> ostream& operator << (ostream& ostr, const map<_KTy, _Ty>& m) { if (m.empty()) { cout << "{ }"; return ostr;	} cout << "{" << *m.begin(); for (auto itr = ++m.begin(); itr != m.end(); itr++) { cout << ", " << *itr; } cout << "}"; return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const vector<_Ty>& v) { if (v.empty()) { cout << "{ }"; return ostr; }	cout << "{" << v.front(); for (auto itr = ++v.begin(); itr != v.end(); itr++) { cout << ", " << *itr; }	cout << "}"; return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const set<_Ty>& s) { if (s.empty()) { cout << "{ }"; return ostr; } cout << "{" << *(s.begin()); for (auto itr = ++s.begin(); itr != s.end(); itr++) { cout << ", " << *itr; }	cout << "}"; return ostr; }
#define PI 3.14159265358979323846
#define EPS 1e-6
#define MIN(a,b) ((a)<(b)?(a):(b))
#define MAX(a,b) ((a)>(b)?(a):(b))
#define all(x) (x).begin(), (x).end()



int yuki0183_2()
{
	int x;
	int a[6] = { 1, 20, 3, 14, 5, 6 };
	set<int> st;

	for (int i = 0; i < (1 << 6); i++) {
		cout << i << " : ";
		x = 0;
		for (int b = 0; b < 6; b++) {
			if (i & (1 << b)) {
				cout << a[b] << " ";
				x ^= a[b];
			}
		}
		cout << " : " << x << endl;
		st.insert(x);
	}

	cout << st.size() << " : " << st << endl;
	return 0;
}

int yuki0183()
{
	// A_i は 2^14 = 100000000000000 までとりうるので XOR の結果は最大 2^15 - 1 = 111111111111111 までありうる
	const int MAX = 1 << 15;

	// dp[i] が true なら i をつくることができる
	bool dp[MAX] = { 0 };
	
	// 0 は初期状態
	dp[0] = true;

	int N;
	cin >> N;

	int tmp;

	for (int i = 0; i < N; i++) {
		cin >> tmp;
		for (int j = 0; j < MAX; j++)
			if (dp[j]) dp[tmp ^ j] = true;
	}

	int cnt = 0;
	for (int i = 0; i < MAX; i++)
		if (dp[i]) cnt++;

	cout << cnt << endl;

	return 0;
}

int main()
{
	//clock_t start, end;
	//start = clock();

	yuki0183();

	//end = clock();
	//printf("%d msec.\n", end - start);

	return 0;
}