Didgit

import java.util.Scanner;

public class Problem_10 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int input = Integer.parseInt(scanner.nextLine());

        String num0 = "zero";
        String num1 = "one";
        String num2 = "two";
        String num3 = "three";
        String num4 = "four";
        String num5 = "five";
        String num6 = "six";
        String num7 = "seven";
        String num8 = "eight";
        String num9 = "nine";
        String num10 = "ten";
        String num11 = "eleven";
        String num12 = "twelve";
        String num13 = "thirteen";
        String num14 = "fourteen";
        String num15 = "fifteen";
        String num16 = "sixteen";
        String num17 = "seventeen";
        String num18 = "eighteen";
        String num19 = "nineteen";
        String num20 = "twenty";
        String num30 = "thirty";
        String num40 = "forty";
        String num50 = "fifty";
        String num60 = "sixty";
        String num70 = "seventy";
        String num80 = "eighty";
        String num90 = "ninety";
        String num100 = " hundred";

        String nameNum = "";
        int first = 0;
        int second = 0;


        if (input >= 100) {
            first = input / 100;
            switch (first) {
                case 1:
                    nameNum = num1 + num100;
                    break;
                case 2:
                    nameNum = num2 + num100;
                    break;
                case 3:
                    nameNum = num3 + num100;
                    break;
                case 4:
                    nameNum = num4 + num100;
                    break;
                case 5:
                    nameNum = num5 + num100;
                    break;
                case 6:
                    nameNum = num6 + num100;
                    break;
                case 7:
                    nameNum = num7 + num100;
                    break;
                case 8:
                    nameNum = num8 + num100;
                    break;
                case 9:
                    nameNum = num9 + num100;
                    break;
            }
            input = input % 100;
            if (input > 0) {
                nameNum += " and ";
            }
        }
        if (input >= 10 && input < 20) {
            switch (input) {
                case 10:
                    nameNum += num10;
                    break;
                case 11:
                    nameNum += num11;
                    break;
                case 12:
                    nameNum += num12;
                    break;
                case 13:
                    nameNum += num13;
                    break;
                case 14:
                    nameNum += num14;
                    break;
                case 15:
                    nameNum += num15;
                    break;
                case 16:
                    nameNum += num16;
                    break;
                case 17:
                    nameNum += num17;
                    break;
                case 18:
                    nameNum += num18;
                    break;
                case 19:
                    nameNum += num19;
                    break;
            }
        }

        if (input >= 20) {
            second = input / 10;
            switch (second) {
                case 2:
                    nameNum += num20;
                    break;
                case 3:
                    nameNum += num30;
                    break;
                case 4:
                    nameNum += num40;
                    break;
                case 5:
                    nameNum += num50;
                    break;
                case 6:
                    nameNum += num60;
                    break;
                case 7:
                    nameNum += num70;
                    break;
                case 8:
                    nameNum += num80;
                    break;
                case 9:
                    nameNum += num90;
                    break;
            }
            input = input % 10;
            if (input > 0) {
                nameNum += " ";
            }
        }

        if (input <= 9) {
            switch (input) {
                case 1:
                    nameNum += num1;
                    break;
                case 2:
                    nameNum += num2;
                    break;
                case 3:
                    nameNum += num3;
                    break;
                case 4:
                    nameNum += num4;
                    break;
                case 5:
                    nameNum += num5;
                    break;
                case 6:
                    nameNum += num6;
                    break;
                case 7:
                    nameNum += num7;
                    break;
                case 8:
                    nameNum += num8;
                    break;
                case 9:
                    nameNum += num9;
                    break;
            }
            if (!(first > 0) && !(second > 0) && input == 0) {
                nameNum += num0;
            }
        }



        System.out.println(nameNum.substring(0,1).toUpperCase() + nameNum.substring(1));

    }
}