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

int main() {
  ll N,D;
  cin>>N>>D;
  ll x[N];
  ll v[N];
  for(ll i=0;i<N;i++){
    cin>>x[i];
  }
  ll sum=0;
  for(ll i=0;i<N;i++){
    cin>>v[i];
    sum+=v[i];
  }  
  cout<<(D+sum-1)/sum<<endl;
  return 0;
  
}