#include <bits/stdc++.h>

using namespace std;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n, ans = 0, c;
    unsigned long long tmp;
    cin >> n;
    vector<unsigned long long> a(n);
    for(int i = 0; i < n; i++) {
        cin >> a[i];
    }
    for(int i = 0; i < n; i++) {
        if(a[i]) {
            ans++;
            tmp = a[i] >> 1LL;
            c = 0;
            while (tmp){
                c++;
                tmp >>= 1LL;
            }
            for(int j = i + 1; j < n; j++) {
                if ((1LL << c) & a[j]) a[j] ^= a[i];
            }
        }
    }
    cout << (1LL << ans) << "\n";
    return 0;
}