#include <bits/stdc++.h>
#define REP(i,n) for(int i=0;i<n;i++)
#define LOOP(i,x,n) for(int i=x;i<n;i++)
#define ALL(v) (v).begin(),(v).end()
#define PB push_backs
#define MP make_pair
#define FR first
#define SC second
#define int long long
using namespace std;
const int MOD=1000000007;
const int INF=1000000009;

int dp[1<<15];

signed main(){
  int n;
  cin>>n;
  vector<int> a(n);
  dp[0]=1;
  REP(i,n){
    cin>>a[i];
    REP(j,1<<15)if(dp[j])dp[j^a[i]]=1;
  }
  int ans=0;
  REP(i,1<<15)if(dp[i])ans++;
  cout<<ans<<endl;
  return 0;
}