using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MagicLetter
{
    class Program
    {
        static void Main(string[] args)
        {
            var A = char.Parse(Console.ReadLine());
            var B = char.Parse(Console.ReadLine());
            var magic = char.Parse(Console.ReadLine());

            for (char c = A; c <= B; c++)
            {
                for (char d = A; d <= B; d++)
                {
                    for (char e = A; e <= B; e++)
                    {
                        if (c != magic && d != magic && e != magic) Console.Write(c+d+e+" ");
                    }
                }
            }
        }
    }
}