#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#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() {
  ll n, m, w;
  cin >> n >> m >> w;
  vector<ll> a(n), b(m), c(m);
  rep(i, n) cin >> a[i];
  rep(i, m) cin >> b[i];
  rep(i, m) cin >> c[i];
  map<ll, ll> mp;
  rep(bit, 1 << m) {
    ll wei = 0, val = 0;
    rep(i, m) {
      if (bit & (1 << i)) {
        wei += b[i];
        val += c[i];
      }
    }
    mp[wei] = max(mp[wei], val);
  }
  sort(a.rbegin(), a.rend());
  vector<ll> sum(n + 1, 0);
  rep(i, n) sum[i + 1] = sum[i] + a[i];
  ll ans = sum[min(n, w)];
  for (auto [wei, val] : mp) {
    if (wei > w) continue;
    ans = max(ans, sum[min(n, w - wei)] + val);
  }
  cout << ans << endl;
  return 0;
}