import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Deciphering {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String encryptedString = scanner.nextLine();

        StringBuilder sb = new StringBuilder();
        for (int j = 0; j < encryptedString.length(); j++) {
            char symbol = encryptedString.charAt(j);
            symbol = (char) (symbol - 3);
            sb.append(symbol);
        }
        encryptedString = sb.toString();

        String[] arrLine = scanner.nextLine().split("\\s+");
        String searchedString = arrLine[0];
        String newString = arrLine[1];

        String result = encryptedString.replaceAll(searchedString, newString);
        String regex = "^[a-z ]+((?<=d)[a-z \\{\\}\\|\\#]+)*$";
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(result);

        if (matcher.find()) {
            System.out.println(result);
        } else {
            System.out.println("This is not the book you are looking for.");
        }
    }
}