#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cmath>
#include<vector>
#include<map>
#include<set>
#include<string>
#include<queue>
#include<stack>
#include<complex>
using namespace std;
#define MOD 1000000007
#define MOD2 998244353
#define INF (1<<29)
#define LINF (1LL<<60)
#define EPS (1e-10)
#define PI 3.1415926535897932384626433832795028
typedef long long Int;
typedef pair<Int, Int> P;
typedef long double Real;
typedef complex<Real> CP;

Int n, d, vsum, x, v;

int main(){
    cin >> n >> d;
    for(int i = 0;i < n;i++)cin >> x;
    for(int i = 0;i < n;i++){cin >> v;vsum+=v;}
    Int t = d / vsum;
    if(d % vsum != 0)t++;
    cout << t << endl;
    return 0;
}