04.FiveSpecialLetters

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

namespace _04.FiveSpecialLetters
{
    class Program
    {
        static void Main(string[] args)
        {
            int start = int.Parse(Console.ReadLine());
            int end = int.Parse(Console.ReadLine());
            char[] chars = { 'a', 'b', 'c', 'd', 'e' };
            bool foundCombination = false;
            List<string> combinations = new List<string>();


            for (int c1 = 0; c1 < chars.Length; c1++)
            {
                for (int c2 = 0; c2 < chars.Length; c2++)
                {
                    for (int c3 = 0; c3 < chars.Length; c3++)
                    {
                        for (int c4 = 0; c4 < chars.Length; c4++)
                        {
                            for (int c5 = 0; c5 < chars.Length; c5++)
                            {

                                string combinationWithRepetitions = string.Concat(chars[c1], chars[c2], chars[c3], chars[c4], chars[c5]);
                                char[] combination = combinationWithRepetitions.Distinct().ToArray();


                                if(Calculate(combination) >= start && Calculate(combination) <= end)
                                {
                                    foundCombination = true;
                                    combinations.Add(combinationWithRepetitions);
                                }

                            }
                        }
                    }
                }
            }


            if (foundCombination)
            {
                combinations.Sort();
                    foreach (string currentcombination in combinations)
                    {
                        Console.Write(currentcombination + " ");
                    }
            }
            else
            {
                Console.WriteLine("No");
                foundCombination = true;
            }


      }


        static int Calculate(char[] combination)
        {
            int weight = 0;
            int index = 0;
            for (int i = 1; i <= combination.Length; i++, index++)
            {
                switch(combination[index])
                {
                    case 'a':
                        weight += i * 5;
                        break;
                    case 'b':
                        weight += i * -12;
                        break;
                    case 'c':
                        weight += i * 47;
                        break;
                    case 'd':
                        weight += i * 7;
                        break;
                    case 'e':
                        weight += i * -32;
                        break;
                }
            }
            return weight;
        }





    }
}