fn main() {
	let mut s = String::new();
	std::io::stdin().read_line(&mut s).ok();
	let n: Vec<u16> = s.split_whitespace().flat_map(str::parse).collect();
	let a = n[0] > 2 * n[1] || n[1] > 2 * n[0];
	println!("{}", if a { "No" } else { "Yes" });
}