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

using Int = unsigned long long;

int main() {
    Int N;
    cin >> N;
    Int A[N];

    for (Int i = 0; i < N; i++) cin >> A[i];

    for (Int i = 0; i < N; i++) {
        Int min_bit = 100;
        Int min_index = 0;
        for (Int j = i; j < N; j++) {
            for (Int k = 0; k < 64; k++) {
                if (A[j] & ((Int)1 << k)) {
                    if (k < min_bit) {
                        min_index = j;
                        min_bit = k;
                    }
                }
            }
        }
        if (min_bit == 100) break;
        swap(A[i], A[min_index]);
        for (Int j = i + 1; j < N; j++) {
            if (A[j] & ((Int)1 << min_bit)) {
                A[j] ^= A[i];
            }
        }
    }

    Int ans = 0;

    for (Int i = 0; i < N; i++) {
        bool flag = false;
        for (Int j = 0; j < 64; j++) {
            flag |= (A[i] & ((Int)1 << j));
        }
        ans += flag;
    }

    cout << ((Int)1 << ans) << endl;
}