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

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

    return 0;
}