#include <vector>
#include <iostream>

using namespace std;
#define MAX (1<<15)


bool now[MAX];
bool nex[MAX];
int main() {
    int N;
    cin >> N;
    vector<int> A(N);
    for (int i = 0; i < N; i++)
    {
        cin >> A[i];
    }
    int ans = 0;

    now[0] = true;
    for (int i = 0; i < N; i++)
    {
        for (int j = 0; j < MAX; j++)
        {
            if (now[j]) {
              int num = j ^ A[i];
              nex[num] = true;
            }
            nex[j] |= now[j];
        }

        for (int j = 0; j < MAX; j++)
        {
            now[j] |= nex[j];
        }
    }

    for (int i = 0; i < MAX; i++)
    {
        if (now[i]) ans++;
    }


    cout << ans << endl;
    //cout << (1ll << ans) << endl;
}