import java.io.File;
import java.util.Scanner;

class Reverser {
	public static void main(String [] args) throws Exception {
		Scanner scanner = new Scanner(new File("Reverser.in"));

		ArrayList<Integer> i_aList = new ArrayList<Integer>();
		int n = scanner.nextInt();
		while (n >= 0) {
			i_aList.add(n);
			n = scanner.nextInt();
		}
		for (int i = i_aList.size()-1; i >= 0; i--)
			System.out.println(i_aList.get(i));

		System.out.println();

		ArrayList<String> s_aList = new ArrayList<String>();
		while (scanner.hasNext())
			s_aList.add(scanner.next());
		for (int i = s_aList.size()-1; i >= 0; i--)
			System.out.println(s_aList.get(i));
	}
}