#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<bitset>
#include<set>
#include<map>
#include<stack>
#include<queue>
#include<deque>
#include<list>
#include<iomanip>
#include<cmath>
#include<cstring>
#include<functional>
#include<cstdio>
#include<cstdlib>
using namespace std;

#define repr(i, a, b) for (int i = (int)(a); i < (int)(b); i++)
#define rep(i, n) repr(i, 0, n)
#define INF 2e9
#define MOD 1000000007
//#define MOD 998244353
#define LINF (long long)4e18
#define jck 3.141592

const double EPS = 1e-10;

using ll = long long;
using Pi = pair<int,int>;
using Pl = pair<ll,ll>;


int main(){
    int n,d; cin >> n >> d;
    vector<int> x(n),v(n);
    rep(i,n) cin >> x[i];
    rep(i,n) cin >> v[i];
    int ok = 1000000000/n+1,ng = 0;
    while(ok-ng > 1){
        int mid = (ok+ng)/2;
        ll sum = 0;
        rep(i,n){
            sum += (ll)v[i]*mid;
        }
        if(sum >= d) ok = mid;
        else ng = mid;
    }
    cout << ok << endl;
}