#include<bits//stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define req(i,n) for(int i = 1;i <=  n; i++)
#define rrep(i,n) for(ll i = n-1;i >= 0;i--)
#define ALL(obj) begin(obj), end(obj)
#define RALL(a) rbegin(a),rend(a)
typedef long long int ll;
typedef long double ld;
const int MAX = 510000;
const ll MOD = 1000000007;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
const ll INF = 1e18;
int main(){
    int n;cin >>n;
    vector<int> a(n);vector<int> dp(2e5,0);
    dp[0] = 1;
    rep(i,n) cin >>a[i];
    rep(i,n){
        rep(j,1<<15){
            chmax(dp[j^a[i]],dp[j]);
        }
    }int cnt = 0;
    rep(i,1<<15) if(dp[i])cnt++;
    cout << cnt << endl;
}