#include <bits/stdc++.h>
#include <chrono>
#include <complex>
#include <cmath>
//#define PI M_PI
using namespace std;
using ll=long long;
#pragma GCC target ("avx")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define rep(i,a,b) for(it i=(it)(a);i<=(it)b;i++)
#define irep(i,a,b) for(int i=(int)(a);i<=(int)b;i++)
#define nrep(i,a,b) for(it i=(it)(a);i>=(it)b;i--)
#define inrep(i,a,b) for(int i=(int)(a);i>=(int)b;i--)
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define moda 998244353LL
#define modb 1000000007LL
#define modc 968244353LL
#define dai 2500000000000000000LL
#define sho -dai
#define aoi 1e+18
#define tyu 2500000000
#define giri 1000000000
#define en 3.14159265358979
#define eps 1e-14
#define yn(x) out(x?"Yes":"No")
#define YN(x) out(x?"YES":"NO")
#define fi(x) cout<<fixed<<setprecision(x);
template<typename T> using pq = priority_queue<T>;
template<typename T> using pqg = priority_queue<T, vector<T>, greater<T>>;
template<typename T> using pairs = pair<T,T>;
using it=long long;
using itn=int;
using un=unsigned long long;
using idb=double;
using db=long double;
using st=string;
using ch=char;
using bo=bool;
using P=pair<it,it>;
using ip=pair<int,int>;
using vi=vector<it>;
using ivi=vector<int>;
using ivd=vector<idb>;
using vd=vector<db>;
using vs=vector<st>;
using vc=vector<ch>;
using vb=vector<bo>;
using vp=vector<P>;
using ivp=vector<ip>;
using sp=set<P>;
using isp=set<ip>;
using ss=set<st>;
using sca=set<ch>;
using si=set<it>;
using isi=set<int>;
using svi=set<vi>;
using vvi=vector<vi>;
using ivvi=vector<ivi>;
using ivvd=vector<ivd>;
using vvd=vector<vd>;
using vvs=vector<vs>;
using vvb=vector<vb>;
using vvc=vector<vc>;
using vvp=vector<vp>;
using ivvp=vector<ivp>;
using vsi=vector<si>;
using ivsi=vector<isi>;
using vsp=vector<sp>;
using ivsp=vector<isp>;
using vvsi=vector<vsi>;
using ivvsi=vector<ivsi>;
using vvsp=vector<vsp>;
using ivvsp=vector<ivsp>;
using vvvi=vector<vvi>;
using ivvvi=vector<ivvi>;
using ivvvd=vector<ivvd>;
using vvvd=vector<vvd>;
using vvvb=vector<vvb>;
using ivvvp=vector<ivvp>;
using vvvvi=vector<vvvi>;
using ivvvvi=vector<ivvvi>;
using vvvvd=vector<vvvd>;
const int dx[8]={0,1,0,-1,1,1,-1,-1};
const int dy[8]={1,0,-1,0,1,-1,1,-1};
st abc="abcdefghijklmnopqrstuvwxyz";
st ABC="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
st num="0123456789";
st mb="xo";
st MB="XO";
#include <atcoder/all>
using namespace atcoder;
using mints=modint998244353;
using mint=modint;
using minto=modint1000000007;
using vm=vector<mint>;
using vms=vector<mints>;
using vmo=vector<minto>;
using vvm=vector<vm>;
using vvms=vector<vms>;
using vvmo=vector<vmo>;
using vvvm=vector<vvm>;
using vvvms=vector<vvms>;
using vvvmo=vector<vvmo>;
using vvvvm=vector<vvvm>;
using vvvvms=vector<vvvms>;
using vvvvmo=vector<vvvmo>;
using vvvvvm=vector<vvvvm>;
using vvvvvms=vector<vvvvms>;
using vvvvvmo=vector<vvvvmo>;
using vvvvvvm=vector<vvvvvm>;
using vvvvvvms=vector<vvvvvms>;
using vvvvvvmo=vector<vvvvvmo>;

namespace {
template <typename T, typename U>
ostream &operator<<(ostream &os, const pair<T, U> &p) {
  os << p.first << ' ' << p.second;
  return os;
}
template <typename T, typename U>
istream &operator>>(istream &is, pair<T, U> &p) {
  is >> p.first >> p.second;
  return is;
}

template <typename T>
ostream &operator<<(ostream &os, const vector<T> &v) {
  int s = (int)v.size();
  for (int i = 0; i < s; i++) os << (i ? " " : "") << v[i];
  return os;
}
template <typename T>
istream &operator>>(istream &is, vector<T> &v) {
  for (auto &x : v) is >> x;
  return is;
}

istream &operator>>(istream &is, __int128_t &x) {
  string S;
  is >> S;
  x = 0;
  int flag = 0;
  for (auto &c : S) {
    if (c == '-') {
      flag = true;
      continue;
    }
    x *= 10;
    x += c - '0';
  }
  if (flag) x = -x;
  return is;
}

istream &operator>>(istream &is, __uint128_t &x) {
  string S;
  is >> S;
  x = 0;
  for (auto &c : S) {
    x *= 10;
    x += c - '0';
  }
  return is;
}

ostream &operator<<(ostream &os, __int128_t x) {
  if (x == 0) return os << 0;
  if (x < 0) os << '-', x = -x;
  string S;
  while (x) S.push_back('0' + x % 10), x /= 10;
  reverse(begin(S), end(S));
  return os << S;
}
ostream &operator<<(ostream &os, __uint128_t x) {
  if (x == 0) return os << 0;
  string S;
  while (x) S.push_back('0' + x % 10), x /= 10;
  reverse(begin(S), end(S));
  return os << S;
}

void in() {}
template <typename T, class... U>
void in(T &t, U &...u) {
  cin >> t;
  in(u...);
}

void out() { cout << '\n'; }
template <typename T, class... U, char sep = ' '>
void out(const T &t, const U &...u) {
  cout << t;
  if (sizeof...(u)) cout << sep;
  out(u...);
}

struct IoSetupNya {
  IoSetupNya() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(15);
    cerr << fixed << setprecision(7);
  }
} iosetupnya;

}  //namespace Nyaan

template<typename T>
void dec(vector<T> &a){
  rep(i,0,a.size()-1)a[i]--;
  return;
}

it gcda(it a,it b){
  if(!a||!b){
    return max(a,b);
  }
  while(a%b&&b%a){
    if(a>b)a%=b;
    else b%=a;
  }
  return min(a,b);
}

it lcma(it a,it b){
  return a/gcda(a,b)*b;
}

bo outc(int h,int w,int x,int y){
  return (x<0||x>=h||y<0||y>=w);
}

/*総和をもとめるセグ木
struct nod{
  it val;
  int siz;
  nod(it v=0,int s=0):val(v),siz(s){}
};

nod op(nod a,nod b){return nod(a.val+b.val,a.siz+b.siz);}
nod e(){return nod(0,0);}

struct act{
  it a;
  act(it e=0):a(e){}
};

nod mapping(act f,nod x){return nod(f.a+x.val,x.siz);}
act comp(act f,act g){return act(f.a+g.a);}
act id(){return act(0);}*/
#define endl '\n'

int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n,d,k;in(n,d,k);
  vi a(n);in(a);
  ivi c(n);in(c);
  irep(i,0,n-1)c[i]=min(c[i],k);
  vvi dp(d+1,vi(k+1,sho));
  dp[0][0]=0;
  irep(i,0,n-1)
    inrep(j,d-1,0)
      inrep(l,k,0){
        if(dp[j][l]==sho)continue;
        dp[j+1][min(l+c[i],k)]=max(dp[j+1][min(l+c[i],k)],dp[j][l]+a[i]);
      }
  out(dp[d][k]==sho?"No":to_string(dp[d][k]));
}