Description
Today Tavas got his test result as an integer score and he wants to share it with his girlfriend, Nafas.

His phone operating system is Tavdroid, and its keyboard doesn’t have any digits! He wants to share his score with Nafas via text, so he has no choice but to send this number using words.

He ate coffee mix without water again, so right now he’s really messed up and can’t think.

Your task is to help him by telling him what to type.

Input
The first and only line of input contains an integer s (0 ≤ s ≤ 99), Tavas’s score.

Output
In the first and only line of output, print a single string consisting only from English lowercase letters and hyphens (’-’). Do not use spaces.

Examples
Input
6
Output
six
Input
99
Output
ninety-nine
Input
20
Output
twenty
Note
You can find all you need to know about English numerals in http://en.wikipedia.org/wiki/English_numerals .

C语言版本一

#include <stdio.h>
#include <stdlib.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char *argv[]) {
	int n;
	while(scanf("%d",&n)!=EOF){
		 
		//scanf("%d",&n);
	char num[21][10]={"zero","one","two","three","four","five","six","seven","eight","nine","ten","eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen","eighteen","nineteen","twenty"};
	char number[8][10]={"twenty","thirty","forty","fifty","sixty","seventy","eighty","ninety"}; 
	if(0<=n&&n<=20)printf("%s\n",num[n]);
	else if(n%10==0)printf("%s\n",number[n/10-2]);
	else printf("%s-%s\n",number[n/10-2],num[n%10]);
		
	}
	
	return 0;
}

C语言版本二

    #include <stdio.h>
 
int main()
{
    char *arr1[]={"zero","one","two","three","four","five","six","seven","eight","nine","ten","eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen","eighteen","nineteen","twenty"};
    char *arr2[]={"twenty","thirty","forty","fifty","sixty","seventy","eighty","ninety"};
    int s;
    scanf("%d",&s);
    if(s<=20)
    {
		printf("%s",arr1[s]);
	}
	else
    {
        printf("%s",arr2[s/10-2]);
        if(s%10)
        {
            printf("-%s",arr1[s%10]);
        }
    }
    return 0;
}

C++版本一

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int inf = 0x3f3f3f3f;
int main()
{
    // freopen("shuju.txt", "r", stdin);
    int n;
    cin >> n;
    if(n == 0)
        printf("zero\n");
    else if(n == 1)
        printf("one\n");
    else if(n == 2)
        printf("two\n");
    else if(n == 3)
        printf("three\n");
    else if(n == 4)
        printf("four\n");
    else if(n == 5)
        printf("five\n");
    else if(n == 6)
        printf("six\n");
    else if(n == 7)
        printf("seven\n");
    else if(n == 8)
        printf("eight\n");
    else if(n == 9)
        printf("nine\n");
    else if(n == 10)
        printf("ten\n");
    else if(n == 11)
        printf("eleven\n");
    else if(n == 12)
        printf("twelve\n");
    else if(n == 13)
        printf("thirteen\n");
    else if(n == 14)
        printf("fourteen\n");
    else if(n == 15)
        printf("fifteen\n");
    else if(n == 16)
        printf("sixteen\n");
    else if(n == 17)
        printf("seventeen\n");
    else if(n == 18)
        printf("eighteen\n");
    else if(n == 19)
        printf("nineteen\n");
    else if(n == 20)
        printf("twenty\n");
    else if(n == 30)
        printf("thirty\n");
    else if(n == 40)
        printf("forty\n");
    else if(n == 50)
        printf("fifty\n");
    else if(n == 60)
        printf("sixty\n");
    else if(n == 70)
        printf("seventy\n");
    else if(n == 80)
        printf("eighty\n");
    else if(n == 90)
        printf("ninety\n");
    else
    {
        int a = n / 10, b = n % 10;
        if(a == 2)
            printf("twenty-");
        else if(a == 3)
            printf("thirty-");
        else if(a == 4)
            printf("forty-");
        else if(a == 5)
            printf("fifty-");
        else if(a == 6)
            printf("sixty-");
        else if(a == 7)
            printf("seventy-");
        else if(a == 8)
            printf("eighty-");
        else if(a == 9)
            printf("ninety-");
        if(b == 1)
            printf("one\n");
        else if(b == 2)
            printf("two\n");
        else if(b == 3)
            printf("three\n");
        else if(b == 4)
            printf("four\n");
        else if(b == 5)
            printf("five\n");
        else if(b == 6)
            printf("six\n");
        else if(b == 7)
            printf("seven\n");
        else if(b == 8)
            printf("eight\n");
        else if(b == 9)
            printf("nine\n");
    }
    return 0;
}