#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll n,a[50001],b[50001],c[50001];
ll f(ll ans,int dep){
    if(dep==n) return ans;
    return max(f(ans^a[dep+1],dep+1),f(ans^b[dep+1],dep+1));
}
int main(){
    freopen("mirror.in","r",stdin);
    freopen("mirror.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++) cin>>a[i];
    for(int i=1;i<=n;i++) cin>>b[i];
    for(int i=1;i<=n;i++) cin>>c[i];
    cout<<f(0,0)<<endl;
    return 0;
}