#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <cmath>
#include <numeric>
#include <utility>
#include <iomanip>

using namespace std;
using int64 = long long;
using P = pair<int, int>;

struct aaa{aaa(){cin.tie(nullptr); ios::sync_with_stdio(false); cout<<fixed<<setprecision(20);};}aaa;

int main() {
    int n, d;
    cin >> n >> d;
    vector<int> x(n), v(n);
    for (int i=0; i<n; i++) cin >> x[i];
    int64 sum = 0;
    for (int i=0; i<n; i++) {
        cin >> v[i];
        sum += v[i];
    }
    cout << (d+sum-1)/sum << endl;
}