use std::io::*;

fn main() {
    let mut s: String = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let n: usize = itr.next().unwrap().parse().unwrap();
    let d: usize = itr.next().unwrap().parse().unwrap();
    let _x: Vec<usize> = (0..n)
        .map(|_| itr.next().unwrap().parse().unwrap())
        .collect();
    let v: Vec<usize> = (0..n)
        .map(|_| itr.next().unwrap().parse().unwrap())
        .collect();

    let mut ok = 1 << 30;
    let mut ng = 0;
    while ok - ng > 1 {
        let mid = (ok + ng) >> 1;

        let mut tmp = 0;
        for i in 0..n {
            tmp += v[i] * mid;
        }
        if tmp >= d {
            ok = mid;
        } else {
            ng = mid;
        }
    }
    println!("{}", ok);
}