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 k: usize = itr.next().unwrap().parse().unwrap();
    let p: Vec<usize> = (0..n)
        .map(|_| itr.next().unwrap().parse().unwrap())
        .collect();
    let mut ans = 0;
    for i in 0..n {
        let b = p[i];
        let mut cnt = 0;
        for j in 0..n {
            if p[j] >= b {
                cnt += 1;
            }
        }
        if k >= cnt && cnt > ans {
            ans = cnt;
        }
    }
    println!("{}", ans);
}