using System;

namespace JakeNumbers
{
    class Program
    {
        static void Main(string[] args)
        {

            string input = "936";
            int inputInt = int.Parse(input);

            int[] inputDigits = new int[input.Length];
            for (int i = input.Length - 1; i >= 0; i--)
            {
                //Seprate the digits into an array
                inputDigits[i] = int.Parse(input.Substring(i, 1));
            }

            string[] numberNames = { "", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen" };
            string[] tensNames = { "","teen", "twenty", "thirty", "fourty", "fifty", "sixty", "seventy", "eighty", "ninety" };

            string output = "";

            if (inputInt == 0)
            {
                output = "zero";
            }
            else if (inputInt < 16)
            {
                output = numberNames[inputInt];
            }
            else if (inputInt < 20)
            {
                output = numberNames[inputDigits[1]] + tensNames[1];
            } else
            {
                int i = 0;

                if (input.Length == 3)
                {
                    output = numberNames[inputDigits[i++]] + " hundred";

                    if (inputDigits[i] + inputDigits[i + 1] != 0)
                    {
                        output += " and ";
                    }

                }

                string dash = "-";
                if (inputDigits[i + 1] == 0 || inputDigits[i] == 0){
                    dash = "";
                }
                output += tensNames[inputDigits[i++]] + dash + numberNames[inputDigits[i]];

            }

            Console.WriteLine(output);
        }
    }
}