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

int main() {
    int N;
    cin >> N;
    unsigned long long 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 = -1;
        for (int j = i; j < N; j++) {
            for (int k = 0; k < 64; k++) {
                if (A[j] & ((unsigned long long)1 << k)) {
                    if (k < min_bit) {
                        min_index = j;
                        min_bit = k;
                    }
                }
            }
        }
        if (min_index == -1) break;
        swap(A[i], A[min_index]);
        for (int j = i + 1; j < N; j++) {
            if (A[j] & ((unsigned long long)1 << min_bit)) {
                A[j] ^= A[min_index];
            }
        }
    }

    int ans = 0;

    for (int i = 0; i < N; i++) {
        bool flag = false;
        for (int j = 0; j < 63; j++) {
            flag |= A[i] & ((unsigned long long)1 << j);
        }
        ans += flag;
    }

    cout << ((unsigned long long)1 << ans) << endl;
}