package exam18december;

import java.util.Scanner;

public class test4 {
    public static void main(String[] args) {

        Scanner scan = new Scanner (System.in);

        char firstLetter = scan.nextLine().charAt(0);
        char lastLetter = scan.nextLine().charAt(0);
        char magicLetter = scan.nextLine().charAt(0); // Прочети и това като char за по-лесно сръвняване с != , ==

        for (char i = firstLetter; i <= lastLetter; i++) {
            for (char j = firstLetter; j <= lastLetter; j++) {
                for (char k = firstLetter; k <= lastLetter; k++) {
//                    String word = String.valueOf(i + j + k); // При вход a/c/b -> word = "291" -> String

                    if (i != magicLetter && k != magicLetter && j != magicLetter){
                        System.out.printf("%c%c%c ", i, j, k);
                    }
                }
            }
        }
    }
}