fn main(){
	let mut s = String::new();
	std::io::stdin().read_line(&mut s).unwrap();
	let vec: Vec<&str> = s.trim().split(' ').collect();
	if vec[0] != vec[1] {
		println!("{} {}", vec[1], vec[0]);
	} else {
		println!("{} {}", vec[0], vec[1]);
	}
}