using System;

class Program
{
    public static void Main ()
    {
        long n = long.Parse (Console.ReadLine ());

        lastDigit (n);
    }

    private static long lastDigit (long n)
    {
        long result = Math.Abs(n % 10);

        switch (result)
        {
            case 0: Console.WriteLine ("zero"); break;
            case 1: Console.WriteLine ("one"); break;
            case 2: Console.WriteLine ("two"); break;
            case 3: Console.WriteLine ("three"); break;
            case 4: Console.WriteLine ("four"); break;
            case 5: Console.WriteLine ("five"); break;
            case 6: Console.WriteLine ("six"); break;
            case 7: Console.WriteLine ("seven"); break;
            case 8: Console.WriteLine ("eight"); break;
            case 9: Console.WriteLine ("nine"); break;
        }

        return result;
    }
}