#include<bits/stdc++.h>
using lint=long long;
int main(){
    std::cin.tie(nullptr);std::ios_base::sync_with_stdio(false);
    std::cout.setf(std::ios_base::fixed);std::cout.precision(15);
    lint n;std::cin>>n;
    std::vector<lint>a(n);
    for(lint&x:a)std::cin>>x;
    for(lint i=0;i<n;i++){
        if(a.at(i)==0)continue;
        lint tester=a.at(i)&-a.at(i);
        lint mask=std::exchange(a.at(i),tester);
        for(lint j=i+1;j<n;j++){
            if(tester&a.at(j))a.at(j)^=mask;
        }
    }
    std::cout<<(1ll<<std::accumulate(
        a.begin(),a.end(),0ll,
        [](lint x,lint y){return x+__builtin_popcountll(y);}))<<'\n';
}
/*
 * 1 a    1  a    1  0
 * 1 b -> 0 ab -> 0 ab
 *
 * if a:
 *     1  0   1 !a
 *     0 !b = 0 !b
 *
 * if !a:
 *     1  0   1  a
 *     0  b = 0  b
 */