#include <iostream>
using namespace std;
int main(){
    int a,b;cin>>a>>b;
    int sm = 0;
    int tmp;
    for(int i = 0; a > i; i++)cin>>tmp;
    for(int i = 0; a > i; i++)cin>>tmp,sm += tmp;
    cout << (b+sm-1)/sm << endl;
    
}