#include <bits/stdc++.h>
#define REP(i,n,N) for(int i=n;i<N;i++)
#define p(S) cout<<(S)<<endl
using namespace std;
bool dp[2<<14]={};
int main(){
	int N;
	cin>>N;
	int A[5002];
	REP(i,0,N) cin>>A[i];
	dp[0]=true;
	REP(i,0,N)
		REP(X,0,2<<14)
			dp[X ^ A[i]]=dp[X];

	int cnt=count(dp,dp+(2<<14),true);

	p(cnt);
	return 0;
}