#include <bits/stdc++.h>

using namespace std;

long maximumPeople(int n, long p[], long x[], int m , long y[], long r[]) {
    // Return the maximum number of people that will be in a sunny town after removing exactly one cloud.
    int pop=p[1];
    
    if(m<n){
    //if(y[i]+r[i]>=x[i])
        pop=pop+p[0];
    // pop=pop+p[i];   
    }
    return pop;
}

int main() {
    int n;
    cin >> n;
    long p[n];
    for(int p_i = 0; p_i < n; p_i++){
       cin >> p[p_i];
    }
   long x[n];
    for(int x_i = 0; x_i < n; x_i++){
       cin >> x[x_i];
    }
    int m;
    cin >> m;
    long y[m];
    for(int y_i = 0; y_i < m; y_i++){
       cin >> y[y_i];
    }
    long r[m];
    for(int r_i = 0; r_i < m; r_i++){
       cin >> r[r_i];
    }
    long result = maximumPeople(n, p, x, m,y, r);
    cout << result << endl;
    return 0;
}