SpojListi

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Iterator;

class SLLNode<T> {

    protected T value;
    protected SLLNode<T> next;

    public SLLNode(T value) {
        this(value, null);
    }

    public SLLNode(T value, SLLNode<T> next) {
        this.value = value;
        this.next = next;
    }

}

class SLL<T> implements Iterable<T> {

    private SLLNode<T> first;

    public SLL() {
        first = null;
    }

    public void insertFirst(T element) {
        SLLNode<T> newFirst = new SLLNode<T>(element, first);
        this.first = newFirst;
    }

    public void insertLast(T element) {
        SLLNode<T> newLast = new SLLNode<T>(element);
        SLLNode<T> last = getLast();
        if(last != null) {
            last.next = newLast;
        } else {
            insertFirst(element);
        }
    }

    private SLLNode<T> getLast() {
        if(first != null) {
            SLLNode<T> t = first;
            while(t.next != null) {
                t = t.next;
            }
            return t;
        }

        return null;
    }

    public SLL<Integer> joinLists(SLL<Integer> list) {
        SLL<Integer> newList = new SLL<Integer>();

        @SuppressWarnings("unchecked")
        SLLNode<Integer> l1curr = (SLLNode<Integer>) first;
        SLLNode<Integer> l2curr = list.first;
        Integer lastInserted = null;
        while(l1curr != null&&l2curr != null) {
            int newVal = l1curr.value;
            if(l1curr.value < l2curr.value) {
                l1curr = l1curr.next;
            } else if(l1curr.value > l2curr.value) {
                newVal = l2curr.value;
                l2curr = l2curr.next;
            } else {
                l1curr = l1curr.next;
                l2curr = l2curr.next;
            }

            if(lastInserted != null) {
                if(newVal == lastInserted) continue;
            }
            lastInserted = newVal;
            newList.insertLast(newVal);
        }
        while(l1curr != null) {
            int newVal = l1curr.value;
            l1curr = l1curr.next;

            if(lastInserted != null) {
                if(newVal == lastInserted) continue;
            }
            lastInserted = newVal;
            newList.insertLast(newVal);
        }
        while(l2curr != null) {
            int newVal = l2curr.value;
            l2curr = l2curr.next;
            if(lastInserted != null) {
                if(newVal == lastInserted) continue;
            }
            lastInserted = newVal;
            newList.insertLast(newVal);
        }


        return newList;
    }

    public void print() {
        SLLNode<T> t = first;
        while(t != null) {
            System.out.println(t.value);
            t = t.next;
        }
    }

    @Override
    public Iterator<T> iterator() {
        return new Iterator<T>() {

            private SLLNode<T> currentNode = first;

            @Override
            public boolean hasNext() {
                return currentNode != null;
            }

            @Override
            public T next() {
                T value = currentNode.value;
                currentNode = currentNode.next;
                return value;
            }

        };
    }

}

public class SLLJoinLists {
    public static void main(String[] args) throws IOException {
        SLL<Integer> lista1 = new SLL<Integer>();
        SLL<Integer> lista2 = new SLL<Integer>();

        BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
        String s = stdin.readLine();
        int N = Integer.parseInt(s);
        s = stdin.readLine();
        String[] pomniza = s.split(" ");
        for (int i = 0; i < N; i++) {
            lista1.insertLast(Integer.parseInt(pomniza[i]));
        }

        s = stdin.readLine();
        N = Integer.parseInt(s);
        s = stdin.readLine();
        pomniza = s.split(" ");
        for (int i = 0; i < N; i++) {
            lista2.insertLast(Integer.parseInt(pomniza[i]));
        }

        SLL<Integer> spoeni = lista1.joinLists(lista2);
        Iterator<Integer> it = spoeni.iterator();
        while (it.hasNext()) {
            System.out.print(it.next());
            if(it.hasNext())
                System.out.print(" ");
        }
        System.out.println();
    }
}