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

int main() {
    ll n,d;
    std::cin >> n>>d;
    ll sum = 0;
    for (int i = 0; i < n; i++) {
        ll t;
        std::cin >> t;
    }
    for (int i = 0; i < n; i++) {
        ll v;
        std::cin >> v;
        sum += v;
    }
    
    std::cout << (d+sum-1)/sum << std::endl;
}