using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine(CodeToStr(12344));

    }

    private static readonly char[] aM = { 'A', 'N', 'E', 'W', 'U', 'I', 'R', 'H', 'O', 'K' };

    private static readonly char[] aC = { 'A', 'B', 'C', 'D', 'E', 'F', 'J', 'X', 'I', 'Y', 'A', 'N', 'Z', 'W', 'U', 'I', 'R', 'H', 'O', 'K', 'X' };

    private static readonly int[] aT = { 0, 3, 1, 0, 0, 2, 1, 1, 2, 0 };

​

    public static string CodeToStr(long codeNum)

    {

        string codeNumStr = codeNum.ToString();

        string result = "";

        Random rnd = new Random();

​

        int i, j, k;

        for (i = 0; i < codeNumStr.Length; i++)

        {

            k = int.Parse(codeNumStr[i].ToString());

            result = result + aM[k];

            for (j = 0; j < aT[k]; j++)

            {

                result = result + aC[rnd.Next(20)];

            }

        }

​

        return result;

    }

}

​

​