#include <bits/stdc++.h>
using namespace std;
#define FOR(i, n) for(int i = 0; i < (n); i++)
#define MEM(a, x) memset(a, x, sizeof(a))
#define ALL(a) a.begin(), a.end()
#define UNIQUE(a) a.erase(unique(ALL(a)), a.end())
typedef long long ll;

int n;
bool dp[1<<15], _dp[1<<15];

int main(int argc, char const *argv[]) {
	ios_base::sync_with_stdio(false);
	cin >> n;
	dp[0] = true;
	int cnt = 0;
	FOR(i, n) {
		int a;
		cin >> a;
		fill(_dp, _dp+(int)(1<<15), false);
		FOR(j, 1<<15) {
			if (dp[j]) {
				_dp[j^a] = true;
			}
		}
		cnt = 0;
		FOR(j, 1<<15) {
			dp[j] = dp[j] || _dp[j];
			if (dp[j]) cnt++;
		}
	}
	cout << cnt << endl;
	return 0;
}