package ListsMoreExercise;

import java.util.*;
import java.util.stream.Collectors;

public class MixedUpLists {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        List<Integer> list1 = Arrays.
                stream(scanner.nextLine().split("\\s+")).map(Integer::parseInt).collect(Collectors.toList());
        List<Integer> list2 = Arrays.
                stream(scanner.nextLine().split("\\s+")).map(Integer::parseInt).collect(Collectors.toList());

        List<Integer> list3 = new ArrayList<>();
        List<Integer> finalList = new ArrayList<>();
        int firstConstrain = 0;
        int secondConstrain = 0;

        if (list1.size() > list2.size()) {
            firstConstrain = list1.get(list1.size() - 2);
            secondConstrain = list1.get(list1.size() - 1);
            Collections.reverse(list2);
            for (int i = 0; i < list2.size(); i++) {
                list3.add(list1.get(i));
                list3.add(list2.get(i));
            }
        } else if (list1.size() < list2.size()) {
            firstConstrain = list2.get(list2.size() - 2);
            secondConstrain = list2.get(list2.size() - 1);
            Collections.reverse(list2);
            for (int i = 0; i < list1.size(); i++) {
                list3.add(list1.get(i));
                list3.add(list2.get(i+2));
            }
        }
        int smallerNumber = Math.min(firstConstrain, secondConstrain);
        int biggerNumber = Math.max(firstConstrain, secondConstrain);

        for (int i = 0; i < list3.size(); i++) {
            if (list3.get(i) > smallerNumber && list3.get(i) < biggerNumber) {
                finalList.add(list3.get(i));
            }
        }
        Collections.sort(finalList);

        finalList.forEach(e -> System.out.print(e + " "));




    }
}