#include <bits/stdc++.h>
using namespace std;

long long bs[65];

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin >> n;
    int r = 0;
    for (int i = 0; i < n; i++) {
        long long x;
        cin >> x;
        for (int j = 60; j >= 0; j--) {
            if (!(x >> j)) continue;
            if (!bs[j]) {
                bs[j] = x;
                r++;
                break;
            }
            x ^= bs[j];
        }
    }
    cout << (1LL << r) << "\n";
    return 0;
}