import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
class SLLNode {
    protected int n;
    protected SLLNode succ;

    public SLLNode(int n, SLLNode succ) {
        this.n = n;
        this.succ = succ;
    }

    public int getN() {
        return n;
    }

    public void setN(int n) {
        this.n = n;
    }

    public SLLNode getSucc() {
        return succ;
    }

    public void setSucc(SLLNode succ) {
        this.succ = succ;
    }

}

class SLL {
    protected SLLNode first;

    public SLL() {
        first = null;
    }

    public void insertFirst(int o) {
        SLLNode ins = new SLLNode(o, first);
        first = ins;
    }

    public void delete(SLLNode node) {
        if (first != null) {
            SLLNode tmp = first;
            while (tmp.succ != node&&tmp.succ.succ != null)
                tmp = tmp.succ;
            if (tmp.succ == node) {
                tmp.succ = tmp.succ.succ;
            }
            // else throw Exception;
        }
        // else throw Exception;
    }

    public SLLNode first() {
        return first;
    }

    public void insertLast(int o) {
        if (first != null) {
            SLLNode tmp = first;
            while (tmp.succ != null)
                tmp = tmp.succ;
            SLLNode ins = new SLLNode(o, null);
            tmp.succ = ins;
        } else {
            insertFirst(o);
        }
    }

public SLL spoeni(SLL A) {
        SLLNode tmp1 =first;
        SLLNode tmp2 = A.first;
        SLL spoena = new SLL();
        while (tmp1 != null) {
            int i=0;
             if(tmp2==null){
                 spoena.insertLast(tmp1.n);
                tmp1=tmp1.succ;
           }
            else{
            if(tmp1.succ==null&&tmp2==null)
            {
                spoena.insertLast(tmp1.n);
                tmp1=tmp1.succ;

            }
            if(tmp1.succ!=null)
            {
                spoena.insertLast(tmp1.n);
                spoena.insertLast(tmp1.succ.n);
                tmp1=tmp1.succ.succ;
            }
            else{
                spoena.insertLast(tmp1.n);
                tmp1=tmp1.succ;
            }


            while(tmp2.succ!=null)
            {

                spoena.insertLast(tmp2.n); i++;

                tmp2=tmp2.succ;

              if(i==2&&tmp1 !=null) break;


            }}
                 if(i==1 && tmp2!=null){

             spoena.insertLast(tmp2.n);
            tmp2=tmp2.succ;}

            }
        if(tmp1==null && tmp2 != null)spoena.insertLast(tmp2.n);
    if(tmp2==null && tmp1 != null)spoena.insertLast(tmp1.n);

        return spoena;
    }

     public void pecati() {
        SLLNode tmp=first;
        while(tmp!=null) {
            System.out.printf("%d ",tmp.n);
            tmp=tmp.succ;
        }
    }

}

public class SpecialSLLJoin {


    public static void main(String[] args) throws IOException{

        BufferedReader stdin = new BufferedReader(new InputStreamReader(
                System.in));
        String s = stdin.readLine();
        int N = Integer.parseInt(s);
        s = stdin.readLine();
        SLL lista1=new SLL();
        SLL lista2=new SLL();
        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 spoena=new SLL();
        spoena=lista1.spoeni(lista2);
        spoena.pecati();
    }
}