// #pragma GCC optimize ("Ofast")
// #pragma GCC optimize ("unroll-loops")
// #pragma GCC target ("avx,avx2,fma")
#include <bits/stdc++.h>

#define rep(i, a, b) for(int i = (a); i <= (b); i ++)
using std::cin, std::cout, std::cerr;
using ll = long long;

int main() {
    std::ios::sync_with_stdio(false);
    int n; cin >> n;
    std::vector<ll> basis;
    while(n --) {
        ll x; cin >> x;
        for(ll b : basis) {
            if((x ^ b) < x)
                x ^= b;
        }
        for(ll &b : basis) {
            if((b ^ x) < b)
                b ^= x;
        }
        if(x != 0)
            basis.push_back(x);
    }
    cout << (1LL << basis.size()) << '\n';
}