5 Special letters

using System;

public class Program
{
	public static void Main()
	{
		int start = int.Parse(Console.ReadLine());
        int end = int.Parse(Console.ReadLine());
        string pattern = "abcde";
        int counter =0;
        for (int i = 0; i < 5; i++)
		{
            for (int j = 0; j < 5; j++)
			{
                for (int k = 0; k < 5; k++)
				{
                    for (int l = 0; l < 5; l++)
					{
                        for (int m = 0; m < 5; m++)
						{
                            string current = "" + pattern[i] + pattern[j] + pattern[k] + pattern[l] + pattern[m];

                            string unique = "" + current[0];

							for (int f = 1; f < 5; f++)
							{
                                if (unique.IndexOf(current[f]) == -1)
								{
                                    unique += current[f];
                                }
                            }
                            int add = 0;
                            int sum = 0;
                                for (int f = 0; f < unique.Length; f++)
								{
                                    switch (unique[f])
									{
                                        case 'a':
                                            add = 5;
                                            break;
                                        case 'b':
                                            add = -12;
                                            break;
                                        case 'c':
                                            add = 47;
                                            break;
                                        case 'd':
                                            add = 7;
                                            break;
                                        case 'e':
                                            add = -32;
                                            break;
                                    }
                                    sum += (f + 1) * add;
                                }
                                if (sum >= start && sum <= end)
								{
                                    Console.Write(current + " ");
                                    counter++;
                                }
                        }
                    }
                }
            }
        }
        if (counter<1)
		{
            Console.WriteLine("No");
        }

	}
}