#include<bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i=a;i<b;i++)




int N;
int A[5010];
//-----------------------------------------------------------------
bool dp[5010][2<<14];
int main() {
	cin >> N;
	rep(i, 0, N) cin >> A[i];

	dp[0][0] = 1;
	rep(i, 0, N) rep(j, 0, 2 << 14) if(dp[i][j]){
		dp[i + 1][j] = true;
		dp[i + 1][j ^ A[i]] = true;
	}

	int ans = 0;
	rep(j, 0, 2 << 14) if (dp[N][j]) ans++;
	cout << ans << endl;
}