#include <bits/stdc++.h>
#define PI 3.14159265359
#define NIL -1
using namespace std;
const int64_t MOD = 1e9 + 7;

int main() {
	int64_t N, D;
	cin >> N >> D;

	vector<int64_t> x(N), v(N);
	int sum = 0;
	for (int64_t i = 0; i < N; i++) {
		cin >> x.at(i);
	}
	for (int64_t i = 0; i < N; i++) {
		cin >> v.at(i);
		sum += v.at(i);
	}
	//cout << sum << endl;
	//cout << D << endl;
	double n = (double)D / sum;
	int64_t ans = ceil(n);

	cout << ans << endl;
}