// $Id: spellcheck.java,v 1.2 2000/12/20 14:29:31 doug Exp $
// http://www.bagley.org/~doug/shootout/

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

public class spellcheck {
    public static void main(String args[]) throws IOException {
    int n = Integer.parseInt(args[0]);
    HashMap dict = new HashMap();
    String word;

    try {
        BufferedReader in = new BufferedReader(new FileReader("Usr.Dict.Words"));
        while ((word = in.readLine()) != null) {
        dict.put(word, new Integer(1));
        }
        in.close();
        } catch (IOException e) {
            System.err.println(e);
            return;
        }
    
    try {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        while ((word = in.readLine()) != null) {
        if (!dict.containsKey(word)) {
            System.out.println(word);
        }
        }
        } catch (IOException e) {
            System.err.println(e);
            return;
        }
    }
}