#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
#include <string>
using namespace std;



int main() {

	int n;
	int q[6000];
	cin >> n;
	for (int i = 0; i < n; i++) {
		cin >> q[i];
	}
	
	bool dp[33000] = { 0 };
	dp[0] = 1;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < 33000; j++) {
			if (dp[j] == 1) {
				int y = j^q[i];
				dp[y] = 1;
			
			
			}
		
		}
	
	}

	int ans = 0;
	for (int i = 0; i < 33000; i++) {
		if (dp[i] == 1) ans++;
	}


	cout << ans << endl;
	return 0;
}