const INF: usize = 1usize << 60;

fn main() {
    let mut nk = String::new();
    std::io::stdin().read_line(&mut nk).ok();
    let nk: Vec<usize> = nk.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let n = nk[0];
    let k = nk[1];

    let mut dp = vec![INF; n+1];
    dp[1] = 0;
    for i in 1..n {
        if i*2 <= n {
            dp[i*2] = dp[i] + 1;
        }
        if i+3 <= n {
            dp[i+3] = dp[i] + 1;
        }
    }
    if dp[n] <= k {
        println!("YES");
    } else {
        println!("NO");
    }
}