#include <stdio.h>
#include <limits.h>

int main() {
	const int inf = -INT_MAX;

	int n;
	int arr[5010] = {};
	int f[100000] = {};

	scanf("%d", &n);
	int i, j;

	for (i = 0; i < n; i++) {
		scanf("%d", &arr[i]);
	}

	for (i = 0; i < 100000; i++) {
		f[i] = inf;
	}

	f[0] = 0;

	for (i = 0; i < n; i++) {
		int tmp[100000] = {};

		for (j = 0; j < 100000; j++) {
			if (f[j] >= 0) tmp[j^arr[i]] = 10;
		}

		for (j = 0; j < 100000; j++) {
			if (tmp[j] > 0) f[j] = 1;
		}
	}

	int result = 0;
	for (i = 0; i < 100000; i++) {
		if (f[i] >= 0) result++;
	}

	printf("%d", result);

	getchar(); getchar();
	return 0;
}