#include<bits/stdc++.h>
using namespace std;

#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define ALL(v) v.begin(),v.end()
typedef long long ll;
template <class T> using V=vector<T>;
template <class T> using VV=V<V<T>>; //B(n,V<int>(n))
 
int main(){
  ios::sync_with_stdio(false);
  std::cin.tie(nullptr);
  
  ll n,m,w;
  cin>>n>>m>>w;
  V<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];
  sort(ALL(A));
  reverse(ALL(A));
  V<ll> S(n+1);
  rep(i,n) S[i+1]=S[i]+A[i];
  
  ll ans=0;
  for(int bit=0;bit<(1<<m);bit++){
    ll b=0,c=0;
    rep(i,m){
      if(bit&(1<<i)) b+=B[i],c+=C[i];
    }
    if(b>w) continue;
    ans=max(ans,c+S[min(w-b,n)]);
  }
  cout<<ans<<endl;
    
  return 0;
}