fn main() {
	let mut s = String::new();
	std::io::stdin().read_line(&mut s).ok();
	let mut s: Vec<_> = s.trim().chars().collect();
	let c = s.iter().filter(|&&d| d == '1').count();
	s.dedup();
	println!(
		"{}",
		if c == 2 || c > 2 && s.len() < 3 {
			"Yes"
		} else {
			"No"
		}
	);
}