#include <bits/stdc++.h>
using namespace std;
#define Tupizm ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define ONE exit(0);
#define nl "\n"
#define fly return
#define ff first
#define ss second
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
#define pb push_back
#define ppb pop_back
typedef long long ll;
typedef double db;
const int N = 1e5 + 5;
const int M = 1e9 + 7;
int n, h[N], w[N];
ll sum;
int main(){
cin >> n;
for(int i = 1; i <= n; ++i){
cin >> h[i];
}
for(int i = 1; i <= n; ++i){
cin >> w[i];
sum += w[i];
}
sum += (h[n] - h[1]) * (h[n] - h[1]);
cout << sum;
ONE
}
