using System;

class NumberToText
{
    static void Main(string[] args)
    {
        int num = int.Parse(Console.ReadLine());
        if (num == 0)
            Console.WriteLine("zero");
        else if (num == 1)
            Console.WriteLine("one");
        else if (num == 2)
            Console.WriteLine("two");
        else if (num == 3)
            Console.WriteLine("three");
        else if (num == 4)
            Console.WriteLine("four");
        else if (num == 5)
            Console.WriteLine("five");
        else if (num == 6)
            Console.WriteLine("six");
        else if (num == 7)
            Console.WriteLine("seven");
        else if (num == 8)
            Console.WriteLine("eight");
        else if (num == 9)
            Console.WriteLine("nine");
        else if (num > 9)
            Console.WriteLine("number too big");
    }
}