Number 0...100 to Text

import java.util.Scanner;

public class Number0_100toText {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = Integer.parseInt(scanner.nextLine());

        if (a == 1) {
            System.out.println("one");
        } else if (a == 2) {
                System.out.println("two");
            } else if (a == 3) {
                System.out.println("three");
            } else if (a == 4) {
                System.out.println("four");
            } else if (a == 5) {
                System.out.println("five");
            } else if (a == 6) {
                System.out.println("six");
            } else if (a == 7) {
                System.out.println("seven");
            } else if (a == 8) {
                System.out.println("eight");
            } else if (a == 9) {
                System.out.println("nine");
            } else if (a == 10) {
                System.out.println("ten");
            } else if (a == 11) {
                System.out.println("eleven");
            } else if (a == 12) {
                System.out.println("twelve");
            } else if (a == 13) {
                System.out.println("thirteen");
            } else if (a == 14) {
                System.out.println("fourteen");
            } else if (a == 15) {
                System.out.println("fifteen");
            } else if (a == 16) {
                System.out.println("sixteen");
            } else if (a == 17) {
                System.out.println("seventeen");
            } else if (a == 18) {
            System.out.println("eighteen");
        }  else if (a == 19) {
            System.out.println("nineteen");
        } else if (a == 20) {
            System.out.println("twenty");
        } else if (a == 21) {
            System.out.println("twenty one");
        } else if (a == 22) {
            System.out.println("twenty two");
        } else if (a == 23) {
            System.out.println("twenty three");
        } else if (a == 24) {
            System.out.println("twenty four");
        } else if (a == 25) {
            System.out.println("twenty five");
        } else if (a == 26) {
            System.out.println("twenty six");
        } else if (a == 27) {
            System.out.println("twenty seven");
        } else if (a == 28) {
            System.out.println("twenty eight");
        } else if (a == 29) {
            System.out.println("twenty nine");
        } else if (a == 30) {
            System.out.println("thirty");
        } else if (a == 31) {
            System.out.println("thirty one");
        } else if (a == 32) {
            System.out.println("thirty two");
        } else if (a == 33) {
            System.out.println("thirty three");
        } else if (a == 34) {
            System.out.println("thirty four");
        } else if (a == 35) {
            System.out.println("thirty five");
        } else if (a == 36) {
            System.out.println("thirty six");
        } else if (a == 37) {
            System.out.println("thirty seven");
        } else if (a == 38) {
            System.out.println("thirty eight");
        } else if (a == 39) {
            System.out.println("thirty nine");
        } else if (a == 40) {
            System.out.println("forty");
        } else if (a == 41) {
            System.out.println("forty one");
        } else if (a == 42) {
            System.out.println("forty two");
        } else if (a == 43) {
            System.out.println("forty three");
        } else if (a == 44) {
            System.out.println("forty four");
        } else if (a == 45) {
            System.out.println("forty five");
        } else if (a == 46) {
            System.out.println("forty six");
        } else if (a == 47) {
            System.out.println("forty seven");
        } else if (a == 48) {
            System.out.println("forty eight");
        } else if (a == 49) {
            System.out.println("forty nine");
        } else if (a == 50) {
            System.out.println("fifty");
        } else if (a == 51) {
            System.out.println("fifty one");
        } else if (a == 52) {
            System.out.println("fifty two");
        } else if (a == 53) {
            System.out.println("fifty three");
        } else if (a == 54) {
            System.out.println("fifty four");
        } else if (a == 55) {
            System.out.println("fifty five");
        } else if (a == 56) {
            System.out.println("fifty six");
        } else if (a == 57) {
            System.out.println("fifty seven");
        } else if (a == 58) {
            System.out.println("fifty eight");
        } else if (a == 59) {
            System.out.println("fifty nine");
        } else if (a == 60) {
            System.out.println("sixty");
        } else if (a == 61) {
            System.out.println("sixty one");
        } else if (a == 62) {
            System.out.println("sixty two");
        } else if (a == 63) {
            System.out.println("sixty three");
        } else if (a == 64) {
            System.out.println("sixty four");
        } else if (a == 65) {
            System.out.println("sixty five");
        } else if (a == 66) {
            System.out.println("sixty six");
        } else if (a == 67) {
            System.out.println("sixty seven");
        } else if (a == 68) {
            System.out.println("sixty eight");
        } else if (a == 69) {
            System.out.println("sixty nine");
        } else if (a == 70) {
            System.out.println("seventy");
        } else if (a == 71) {
            System.out.println("seventy one");
        } else if (a == 72) {
            System.out.println("seventy two");
        } else if (a == 73) {
            System.out.println("seventy three");
        } else if (a == 74) {
            System.out.println("seventy four");
        } else if (a == 75) {
            System.out.println("seventy five");
        } else if (a == 76) {
            System.out.println("seventy six");
        } else if (a == 77) {
            System.out.println("seventy seven");
        } else if (a == 78) {
            System.out.println("seventy eight");
        } else if (a == 79) {
            System.out.println("seventy nine");
        } else if (a == 80) {
            System.out.println("eighty");
        } else if (a == 81) {
            System.out.println("eighty one");
        } else if (a == 82) {
            System.out.println("eighty two");
        } else if (a == 83) {
            System.out.println("eighty three");
        } else if (a == 84) {
            System.out.println("eighty four");
        } else if (a == 85) {
            System.out.println("eighty five");
        } else if (a == 86) {
            System.out.println("eighty six");
        } else if (a == 87) {
            System.out.println("eighty seven");
        } else if (a == 88) {
            System.out.println("eighty eight");
        } else if (a == 89) {
            System.out.println("eighty nine");
        } else if (a == 90) {
            System.out.println("ninety");
        } else if (a == 91) {
            System.out.println("ninety one");
        } else if (a == 92) {
            System.out.println("ninety two");
        } else if (a == 93) {
            System.out.println("ninety three");
        } else if (a == 94) {
            System.out.println("ninety four");
        } else if (a == 95) {
            System.out.println("ninety five");
        } else if (a == 96) {
            System.out.println("ninety six");
        } else if (a == 97) {
            System.out.println("ninety seven");
        } else if (a == 98) {
            System.out.println("ninety eight");
        } else if (a == 99) {
            System.out.println("ninety nine");
        } else if (a == 100) {
            System.out.println("one hundred");
        } else if (a == 0) {
            System.out.println("zero");
        } else {
            System.out.println("invalid number");
        }

        }
}