#include <iostream>
#include <vector>
#include <string>
#include <cstring>
#include <algorithm>
#include <sstream>
#include <map>
#include <set>
using namespace std;


#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)

typedef long long ll;
typedef unsigned long long ull;
typedef long double lb;

/* ここからが本編 */
int main(void)
{
   int i,j,k;
   int n;
   int a[5000];
   bool dp[33000] = {0};
   cin >> n;
   rep(i,n) cin >> a[i];
   dp[ a[0] ] = true;
   REP(i,0,n) {
      for(j=0;j<33000;j++) {
         if( dp[j] ) dp[j ^ a[i] ] = true;
      }
   }
   int cnt = 0; 
   for(j=0;j<33000;j++) {
      if( dp[j] ) cnt++;
   }
   cout << cnt << endl;
   return 0;
}