#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000001



int main(){	
	
	int n;
	cin>>n;
	vector<int> a(n);
	rep(i,n)cin>>a[i];
	
	vector<bool> dp(1<<15,false);
	dp[0] = true;
	rep(i,n){
		vector<bool> ndp(1<<15,false);
		rep(j,1<<15){
			if(dp[j]==false)continue;
			ndp[j] = true;
			ndp[j^a[i]] = true;
		}
		swap(dp,ndp);
	}
	int ans = 0;
	rep(i,1<<15)if(dp[i])ans++;
	cout<<ans<<endl;
	
	return 0;
	
}