#include<bits/stdc++.h>
using namespace std;
const int INF = 1<<30;
const int MOD = 998244353;
//const long long INF = 1LL<<60;
using graph = vector<vector<int>>;
using ll = long long;


int main(){
    ll n, m, w;
    cin >> n >> m >> w;
    vector<ll> a(n), b(m), c(m);
    for (int i=0; i < n; i++) cin >> a[i];
    for (int i=0; i < m; i++) cin >> b[i];
    for (int i=0; i < m; i++) cin >> c[i];
    sort(a.begin(), a.end(), greater<ll>());
    
    ll ans = 0LL;
    for (int i=0; i < (1<<m); i++){
        ll weight = 0;
        ll value = 0;
        bool flag = true;
        for (int j=0; j < m; j++){
            if (i & (1<<j)){
                weight += b[j];
                value += c[j];
            }
            if (weight > w){
                flag = false;
                break;
            }
        }
        
        if (flag){
            ll rem = w - weight;
            for (int i=0; i < min(rem, n); i++){
                value += a[i];
            }
            ans = max(ans, value);
        }
    }
    cout << ans << endl;
}