#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define REP(i, n)           for(int(i)=0;(i)<(n);++(i))
#define FOR(i, f, t)        for(int(i)=(f);(i)<(t);(++i))

int N;
ll A[111111];

int main(){
    do { cin.tie(0); ios_base::sync_with_stdio(false); } while(0);
    cin >> N;
    REP(i,N) cin >> A[i];

    int res = 1;
    REP(i,N){
        if(A[i] == 0) continue;
        res *= 2;
        ll x = 1LL << (64-__builtin_clzll(A[i])-1);
        FOR(j,i+1,N) if(A[j]&x) A[j] ^= A[i];
    }
    cout << res << endl;
}