use proconio::input;

fn main() {
    input! {
        num: [usize; 4],
        required: [usize; 4],
        mut t: usize,
    }

    let mut problems = num.into_iter().zip(required).collect::<Vec<_>>();
    problems.sort_unstable_by_key(|t| t.1);

    let mut ans = 0;
    for (n, r) in problems {
        let m = (t / r).min(n);
        ans += m;
        t -= m * r;
    }

    println!("{ans}");
}