package m.shin;
import java.util.Scanner;
public class Con543 {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		String[] P = new String[2];
		P[1] = s.next();
		P[0] = s.next();
		s.close();
		System.out.println(P[0] + " " + P[1]);
	}

}