import java.util.Arrays;
import java.util.Scanner;


public class Test {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        String input = scan.nextLine();

        String str = "" + input.charAt(input.length() - 1);
        String number = "";


        switch (str) {
            case "1":
                number = "one";
                break;
            case "2":
                number = "two";
                break;
            case "3":
                number = "three";
                break;
            case "4":
                number = "four";
                break;
            case "5":
                number = "five";
                break;
            case "6":
                number = "six";
                break;
            case "7":
                number = "seven";
                break;
            case "8":
                number = "eight";
                break;
            case "9":
                number = "nine";
                break;
            case "0":
                number = "zero";
                break;
        }
        System.out.println(number);
    }
}