import java.util.Arrays;
import java.util.Scanner;


public class Main_yukicoder183 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int n = sc.nextInt();
        boolean[][] dp = new boolean[2][16384 * 2 + 1];
        dp[0][0] = true;

        for (int i = 1; i <= n; i++) {
        	int a = sc.nextInt();

    		Arrays.fill(dp[i % 2], false);

        	for (int j = 0; j <= 16384 * 2; j++) {
        		if (dp[(i - 1) % 2][j]) {
            		dp[i % 2][j] = true;
        			dp[i % 2][j ^ a] = true;
        		}
        	}
        }

        int ret = 0;
        for (boolean f : dp[n % 2]) {
        	if (f) {
        		ret++;
        	}
        }

        System.out.println(ret);

        sc.close();
    }
}