using System;

namespace ConsoleApp138
{
    class Program
    {
        static void Main(string[] args)
        {
           int num = int.Parse(Console.ReadLine());
            string number = num.ToString();
            int  last = 0;
            for (int i = 0; i < number.Length; i++)
            {
              int digit = number[i];
                last =num % 10;
            }
                switch(last)
                {
                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;

                }
            }

            }



        }