package Search;
import java.util.*;
import java.io.*;
/*
* @author -- rajatgoyal715
*/
public class MissingNumbers {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
int c1[] = new int[10000];
int c2[] = new int[10000];
int n = sc.nextInt();
int a[] = new int[n];
for(int i=0;i