NumbersToText

import java.util.Scanner;

public class p16_NumbersToText {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);

        int num = Integer.parseInt(console.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 num20 = "twenty";
        String num30 = "thirty";
        String num40 = "fourty";
        String num50 = "fifty";
        String num60 = "sixty";
        String num70 = "seventy";
        String num80 = "eighty";
        String num90 = "ninety";



        if (num < 0 || num > 100){
            System.out.println("invalid number");
        } else if (num == 0) {
            System.out.println("zero");
        } else if (num == 1){
            System.out.println("one");
        } else if (num == 2){
            System.out.println("two");
        } else if (num == 3){
            System.out.println("three");
        } else if (num == 4){
            System.out.println("four");
        } else if (num == 5) {
            System.out.println("five");
        } else if (num == 6) {
            System.out.println("six");
        } else if (num == 7){
            System.out.println("seven");
        } else if (num == 8){
            System.out.println("eight");
        } else if (num == 9 ) {
            System.out.println("nine");
        } else if (num == 10){
            System.out.println("ten");
        }else if (num == 11){
            System.out.println("eleven");
        }else if (num == 12){
            System.out.println("twelve");
        }else if (num == 13){
            System.out.println("thirteen");
        }else if (num == 14){
            System.out.println("fourteen");
        }else if (num == 15){
            System.out.println("fifteen");
        }else if (num == 16){
            System.out.println("sixteen");
        }else if (num == 17 ){
            System.out.println("seventeen");
        }else if (num == 18){
            System.out.println("eighteen");
        }else if (num == 19){
            System.out.println("nineteen");
        }else if (num >=20 && num <100) {

            String numA;
            String numB;

            int B = num %10;
            if (B == 1){
            }else if (B == 2){
                numB = num2;
            }else if (B == 3){
                numB = num3;
            }else if (B == 4){
                numB = num4;
            }else if (B == 5){
                numB = num5;
            }else if (B == 6){
                numB = num6;
            }else if (B == 7){
                numB = num7;
            }else if (B == 8){
                numB = num8;
            }else if (B == 9){
                numB = num9;
            }

            if (num >= 20 && num < 30) {
                numA = num20;
            }else if (num >= 30 && num < 40) {
                numA = num30;
            } else if (num >= 40 && num < 50) {
                numA = num40;
            } else if (num >= 50 && num < 60) {
                numA = num50;
            } else if (num >= 60 && num < 70) {
                numA = num60;
            } else if (num >= 70 && num < 80) {
                numA = num70;
            } else if (num >= 80 && num < 90) {
                numA = num80;
            } else  {
                numA = num90;
            }

            System.out.println("numA" + " " + "numB");
        }

        if (num == 100){
            System.out.println("one hundred");
        }
    }
}