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

/*
 *
 * @author Mukesh Singh
 *
 */

import java.io.*;
import java.util.*;
import java.text.DecimalFormat;
@SuppressWarnings("unchecked")
public class AB {	
	//solve test cases
	void solve() throws Exception {
		int n = in.nextInt(); int a[] = new int[n]; int b[] = new int[n-1]; int c[] = new int[n-2];
		for(int i = 0 ; i  <n ; ++i ) {
			int num = in.nextInt();
			a[i] = num ;
		}
		for(int i = 0 ; i  <n-1 ; ++i ) {
			int num = in.nextInt();
			b[i] = num ;
		}
		for(int i = 0 ; i  <n-2 ; ++i ) {
			c[i] = in.nextInt();
		}
		Arrays.sort(a);Arrays.sort(b);Arrays.sort(c);
		int ans1 = -1 ; int ans2 = -1 ;
		for(int i = 0 ; i < n-1 ; ++i ){
			if(a[i]!= b[i]) {
				ans1 = a[i] ; break ;
			}
		}
		if(ans1== -1) ans1 = a[n-1] ;
		for(int i = 0 ; i < n-2 ; ++i ){
			if(c[i]!= b[i]) {
				ans2 = b[i] ; break ;
			}
		}
		if(ans2== -1) ans2 = b[n-2] ;
		System.out.println(ans1);
		System.out.println(ans2);
	}
	
	//@ main function
	public static void main(String[] args) throws Exception {
		new AB();
	}
	
	InputReader in;
	PrintStream out ;
	DecimalFormat df ;
	AB() {
		try {
			File defaultInput = new File("file.in");
			if (defaultInput.exists()) 
				in = new InputReader("file.in");
			else 
				in = new InputReader();
			defaultInput = new File("file.out");
			if (defaultInput.exists()) 
				out = new PrintStream(new FileOutputStream("file.out"));
			else
				out = new PrintStream(System.out);
			df = new DecimalFormat("######0.00");
			solve();
			out.close();
		} 
		catch (Exception e) {
			e.printStackTrace();
			System.exit(261);
		}
	}
	
	class InputReader {
		BufferedReader reader;
		StringTokenizer tokenizer;
		
		InputReader() {
			reader = new BufferedReader(new InputStreamReader(System.in));
		}
		
		InputReader(String fileName) throws FileNotFoundException {
			reader = new BufferedReader(new FileReader(new File(fileName)));
		}
		
		String readLine() throws IOException {
			return reader.readLine();
		}
		
		String nextToken() throws IOException {
			while (tokenizer == null || !tokenizer.hasMoreTokens())
				tokenizer = new StringTokenizer(readLine());
			return tokenizer.nextToken();
		}
		
		boolean hasMoreTokens() throws IOException {
			while (tokenizer == null || !tokenizer.hasMoreTokens()) {
				String s = readLine();
				if (s == null)
					return false;
				tokenizer = new StringTokenizer(s);
			}
			return true;
		}
		
		int nextInt() throws NumberFormatException, IOException {
			return Integer.parseInt(nextToken());
		}
		
		long nextLong() throws NumberFormatException, IOException {
			return Long.parseLong(nextToken());
		}
		
		double nextDouble() throws NumberFormatException, IOException {
			return Double.parseDouble(nextToken());
		}
	}
}
