#Java-Fund 02. English Name of the Last Digit

import java.util.Scanner;

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

    int numA = Integer.parseInt(sc.nextLine());
    int b = numA % 10;


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