#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i=0;i<(int)(n);i++)
#define all(v) v.begin(),v.end()
using ll=long long;
using pll=pair<ll,ll>;
using tll=tuple<ll,ll,ll>;
const ll INF=(1ll<<60);
template<class T> void chmin(T &a,T b){
    if(a>b){
        a=b;
    }
}
template<class T> void chmax(T &a,T b){
    if(a<b){
        a=b;
    }
}
int main(){
    ll n;
    cin >> n;
    vector<ll> a(2*n),b(2*n),x(n),y(n);
    rep(i,2*n) cin >> a[i];
    rep(i,2*n) cin >> b[i];
    rep(i,n) cin >> x[i];
    rep(i,n) cin >> y[i];
    ll ans=0;
    for(ll i=0;i<2*n-1;i+=2){
        ans+=max({a[i]+a[i+1]+x[i/2],b[i]+b[i+1]+x[i/2],a[i]+b[i+1]+y[i/2],b[i]+a[i+1]+y[i/2]});
    }
    cout << ans << endl;
}