#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int INF = 1e9;
const int MOD = INF+7;
const ll LINF = 1e18;
#define rep(i,N) for(int (i)=0;(i)<(N);++(i))
#define rrep(i,N) for(int (i)=(N-1);(i)>0;--i)
#define FOR(i,j,N) for(int (i)=(j);(i)<(N);++(i))
#define put(n) cout<<(n)<<endl;
#define VI vector<int>
#define VII vector<vector<int>>
#define all(v) v.begin(),v.end()
#define MP make_pair
#define pb(n) push_back(n)


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){
        rep(j,(1<<15)){
            if(dp[j]) dp[j^A[i]] = true; 
        }
    }

    int ans = 0;
    rep(i,(1<<15)) ans += dp[i]?1:0;
    cout<<ans<<endl;
}