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

int main(){
    int n;
    cin>>n;
    long v,ans=1;
    vector<long> base;
    for(int i=0;i<n;i++){
        cin>>v;
        for(auto e:base){
            v=min(v,v^e);
        }
        if(v>0){
            base.push_back(v);
            ans*=2;
        }
    }
    cout<<ans<<endl;
}