magicLetters

using System;

namespace MagicLetter
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            char one = char.Parse(Console.ReadLine());
            char two = char.Parse(Console.ReadLine());
            char three = char.Parse(Console.ReadLine());

            for (int i = one; i <= two; i++)
            {
                for (int j = one; j <=two; j++)
                {
                    for (int k = one; k <= two; k++)
                    {
                        if ((char)i!=three&&(char)j!=three&&(char)k!=three)
                        {
                            Console.Write($"{(char)i}{(char)j}{(char)k}");
                            Console.Write(' ');
                        }
                    }
                }
            }



        }
    }
}