#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using ul = unsigned long;

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    ll n,d;
    cin >> n >> d;

    ll x;
    for (long i = 0; i < n; ++i)
        cin >> x;
    ll dd{ 0 };
    for (long i = 0; i < n; ++i)
    {
        cin >> x;
        dd += x;
    }

    ll res = (d + dd -1) / dd;

    cout << res << "\n";

    return 0;
}