3
1 2 3
3 2
2
 3
84 30 9
9 84
9
 4
1 5 7 8
1 5 7
1 5
 3
796067435 964699482 819602309
964699482 796067435
964699482
 10
460626451 802090732 277246428 661369649 388684428 784303821 376287098 656422756 9301599 25720377
277246428 388684428 661369649 460626451 656422756 802090732 9301599 784303821 376287098
376287098 802090732 388684428 9301599 656422756 784303821 460626451 277246428
 6
5 4 3 3 5 5
3 5 5 4 3
3 5 4 3
 3
168638990 939116221 323703261
168638990 323703261
168638990
 3
77 77 77
77 77
77
 3
374054998 726316780 902899520
902899520 726316780
726316780

1
3
 30
84
 8
7
 819602309
796067435
 25720377
661369649
 5
5
 939116221
323703261
 77
77
 374054998
902899520

import java.io.*;
import java.util.*;

public class Main {
    public static void main(String [] args){
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Integer readFromFile=new Integer(1);
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskD solver = new TaskD();
        solver.solve(1, in, out);
        out.close();
    }
    static class TaskD {
        final int MAX = 100_005;
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int n = in.nextInt();
            int sum1 = 0;
            for(int i=0; i<n; i++){
                sum1^=in.nextInt();
            }
            int sum2 = 0;
            for(int i=0; i<n-1; i++){
                int a = in.nextInt();
                sum1^=a;
                sum2^=a;
            }
            out.println(sum1);
            for(int i=0; i<n-2; i++){
                sum2^=in.nextInt();
            }
            out.println(sum2);
        }
    }
    static class InputReader {
        BufferedReader br;
        StringTokenizer st;
        String st1;
        File file = new File("text.txt");
        public InputReader(InputStream in) {
            br = new BufferedReader(new InputStreamReader(in));
            st = null;
        }
        public InputReader(int i) {
            try {
                br  = new BufferedReader(
                        new InputStreamReader(new FileInputStream(file)));
            } catch (FileNotFoundException e1) {
                System.out.println("File is not find");
            }
            st = null;
        }
        public String next(){
            while (st==null || !st.hasMoreTokens()){
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return st.nextToken();
        }
        public String nextLine(){
            try {
                st1 = new String(br.readLine());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
            return st1;
        }
        public int nextInt()  {return Integer.parseInt(next());}
        public long nextLong(){
            return Long.parseLong(next());
        }
        public Double nextDouble(){
            return Double.parseDouble(next());
        }
        public Byte nextByte() {
            return Byte.parseByte(next());
        }
        private int idx;
        public Character nextChar() {
            if(st1==null) {
                st1 = next();
                idx = 0;
            }
            if(idx!=(st1.length())-1){
                return st1.charAt(idx++);
            }else{
                char  c= st1.charAt(idx);
                st1 = null;
                return c;
            }
        }
        public void newFile() {
            try {
                FileWriter write = new FileWriter(file);
                write.write("something for cheaking");
                write.close();

            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}