#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (n);i++)
#define sz(x) int(x.size())
typedef unsigned long long ll;
typedef long double ld;
typedef pair<int,int> P;

int main() {
  int n, d;
  cin >> n >> d;
  rep(i,n) {
    int x;
    cin >> x;
  }
  ll sum = 0;
  rep(i,n) {
    int v;
    cin >> v;
    sum += v;
  }
  cout << (d + sum - 1) / sum << endl;
  return 0;
}