#include <iostream>
#include <cstdio>

using namespace std;

typedef long long LL;

const int N = 100010, B = 70;

LL a[N];
int n, rnk;

struct LinearBasis {
    LL v[B];
    void Insert(LL x) {
        for (int i = B - 1; i >= 0; --i) {
            if (x >> i & 1) {
                if (v[i]) {
                    x ^= v[i];
                } else {
                    v[i] = x;
                    ++rnk;
                    return;
                }
            }
        }
    }
};
LinearBasis lb;

int main() {
    // freopen("int.in", "r", stdin);
    // freopen("int.out", "w", stdout);

    scanf("%d", &n);
    for (int i = 1; i <= n; ++i) {
        scanf("%lld", &a[i]);
        lb.Insert(a[i]);
    }

    printf("%lld\n", 1LL << rnk);

    return 0;
}