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

namespace Zadacha6
{
    class Program
    {
        static void Main(string[] args)
        {
            char startCharacter = char.Parse(Console.ReadLine());
            char endCharacter = char.Parse(Console.ReadLine());
            char withoutCharacter = char.Parse(Console.ReadLine());
            int combinations = 0;

            for (char one = startCharacter; one < endCharacter + 1; one++)
            {
                for (char two = startCharacter; two < endCharacter + 1; two++)
                {
                    for (char three = startCharacter; three < endCharacter + 1; three++)
                    {
                        if (one != withoutCharacter &&
                            two != withoutCharacter &&
                            three != withoutCharacter)
                        {
                            Console.Write(one.ToString() +
                                two.ToString() +
                                three.ToString() + " ");
                            combinations = combinations + 1;
                        }
                    }
                }
            }

            Console.WriteLine(combinations);
        }
    }
}