#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  int 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;
  rep(i, n) {
    ll z = 0;
    int u = 2 * i, v = 2 * i + 1;
    z = max(z, a[u] + a[v] + x[i]);
    z = max(z, a[u] + b[v] + y[i]);
    z = max(z, b[u] + a[v] + y[i]);
    z = max(z, b[u] + b[v] + x[i]);
    ans += z;
  }
  cout << ans << '\n';
  return 0;
}