/* -*- coding: utf-8 -*-
 *
 * 1139.cc:  No.1139 Slime Race - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

const int MAX_N = 100000;

/* typedef */

typedef long long ll;

/* global variables */

/* subroutines */

/* main */

int main() {
  int n, d;
  scanf("%d%d", &n, &d);

  for (int i = 0; i < n; i++) {
    int x;
    scanf("%d", &x);
  }

  ll vsum = 0;
  for (int i = 0; i < n; i++) {
    int v;
    scanf("%d", &v);
    vsum += v;
  }
  //printf("vsum=%lld\n", vsum);

  printf("%lld\n", (d + vsum - 1) / vsum);
  return 0;
}