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

int main() {
	int n; cin >> n;
	int64_t d; cin >> d;
	for(int i = 0; i < n; ++i) {
		int x; cin >> x;
	}
	int64_t sum = 0;
	for(int i = 0; i < n; ++i) {
		int v; cin >> v;
		sum += v;
	}
	cout << (d + sum - 1) / sum << '\n';
	return 0;
}