import java.util.Scanner;

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

        int input = Integer.parseInt(scanner.nextLine());

        int lastnumber = input % 10;

        if (lastnumber == 1){
            System.out.println("one");
        }else if (lastnumber == 2){
            System.out.println("two");
        }else if (lastnumber == 3){
            System.out.println("three");
        }
    }
}