3

#include <iostream>
#include <cstdio>
#include <vector>
#include <cmath>
#include <string>
#include <algorithm>
#include <string>
#include <string.h>

#define F first
#define S second



using namespace std;

vector <int> a, b;

int main()
{
    ios_base::sync_with_stdio(0);
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    int n;
    cin >> n;
    a.resize(n);
    for (int i = 0; i < n; i++)
        cin >> a[i];
    sort(a.begin(), a.end());
    reverse(a.begin(), a.end());
    int m;
    cin >> m;
    b.resize(m);
    for (int i = 0; i < m; i++)
        cin >> b[i];
    sort(b.begin(), b.end());
    reverse(b.begin(), b.end());
    int ans = 0;
    for (int i = 0; i < m; i++)
        if (a[i] > b[i])
        {
            ans += b[i];
            a.push_back(a[i] - b[i]);
        }
        else
            ans += a[i];
    cout << ans << endl;
    return 0;
}