#include <stdio.h>
#include <stdlib.h>
#pragma warning(disable:4996)
int main(void)
{
    int r1 = 0;
    int r2 = 0;
    int r3 = 0;
    int r4 = 0;
    int r5 = 0;
    int r6 = 0;
    int r7 = 0;
    int r8 = 0;
    int r9 = 0;
    int r10 = 0;
    int r12 = 0;
    int r123 = 0;
    int r45 = 0;
    int a,m;
    int s = 0;
    scanf("%d",&a);
    m = a;
    if ( m == 0)
    {   printf("zero"); return 0;}
    while(m != 0)
    {
        m = m / 10;
        s++;
    }
    switch (s)
    {
    case 1:
        {
            switch (a)
            {
            case 0:
                printf("zero");
                break;
            case 1:
                printf("one");
                break;
            case 2:
                printf("two");
                break;
            case 3:
                printf("three");
                break;
            case 4:
                printf("four");
                break;
            case 5:
                printf("five");
                break;
            case 6:
                printf("six");
                break;
            case 7:
                printf("seven");
                break;
            case 8:
                printf("eight");
                break;
            case 9:
                printf("nine");
                break;
            }
            return 0;
        }
    case 2:
        {
            switch (a)
            {
            case 10:
                printf("ten");
                break;
            case 11:
                printf("eleven");
                break;
            case 12:
                printf("twelve");
                break;
            case 13:
                printf("thirteen");
                break;
            case 14:
                printf("fourteen");
                break;
            case 15:
                printf("fifteen");
                break;
            case 16:
                printf("sixteen");
                break;
            case 17:
                printf("seventeen");
                break;
            case 18:
                printf("eighteen");
                break;
            case 19:
                printf("nineteen");
                break;
            case 20:
                printf("twenty");
                break;
            case 30:
                printf("thirty");
                break;
            case 40:
                printf("forty");
                break;
            case 50:
                printf("fifty");
                break;
            case 60:
                printf("sixty");
                break;
            case 70:
                printf("seventy");
                break;
            case 80:
                printf("eighty");
                break;
            case 90:
                printf("ninety");
                break;
            default:
                {
                    r1 = a % 10;
                    a = a / 10;
                    r2 = a % 10;
                    switch(r2)
                    {
                    case 2:
                        printf("twenty-");
                        break;
                    case 3:
                        printf("thirty-");
                        break;
                    case 4:
                        printf("forty-");
                        break;
                    case 5:
                        printf("fifty-");
                        break;
                    case 6:
                        printf("sixty-");
                        break;
                    case 7:
                        printf("seventy-");
                        break;
                    case 8:
                        printf("eighty-");
                        break;
                    case 9:
                        printf("ninety-");
                        break;
                    }
                    switch(r1)
                    {
                    case 1:
                        printf("one");
                        break;
                    case 2:
                        printf("two");
                        break;
                    case 3:
                        printf("three");
                        break;
                    case 4:
                        printf("four");
                        break;
                    case 5:
                        printf("five");
                        break;
                    case 6:
                        printf("six");
                        break;
                    case 7:
                        printf("seven");
                        break;
                    case 8:
                        printf("eight");
                        break;
                    case 9:
                        printf("nine");
                        break;
                    }
                }
            }
            return 0;
        }
    case 3:
        {
            switch (a)
            {
            case 100:
                printf("one hundred");
                break;
            case 200:
                printf("two hundred");
                break;
            case 300:
                printf("three hundred");
                break;
            case 400:
                printf("four hundred");
                break;
            case 500:
                printf("five hundred");
                break;
            case 600:
                printf("six hundred");
                break;
            case 700:
                printf("seven hundred");
                break;
            case 800:
                printf("eight hundred");
                break;
            case 900:
                printf("nine hundred");
                break;
            default:
                {
                    r1 = a % 10;
                    r12 = a % 100;
                    a = a / 10;
                    r2 = a % 10;
                    a = a / 10;
                    r3  = a % 10;
                    switch (r3)
                    {
                    case 1:
                        printf("one hundred ");
                        break;
                    case 2:
                        printf("two hundred ");
                        break;
                    case 3:
                        printf("three hundred ");
                        break;
                    case 4:
                        printf("four hundred ");
                        break;
                    case 5:
                        printf("five hundred ");
                        break;
                    case 6:
                        printf("six hundred ");
                        break;
                    case 7:
                        printf("seven hundred ");
                        break;
                    case 8:
                        printf("eight hundred ");
                        break;
                    case 9:
                        printf("nine hundred ");
                        break;
                    }
                    switch(r2)
                    {
                    case 0:
                        break;
                    case 1:
                        r1 = 0;
                        switch (r12)
                        {
                        case 10:
                            printf("ten");
                            return 0;
                        case 11:
                            printf("eleven");
                            return 0;
                        case 12:
                            printf("twelve");
                            return 0;
                        case 13:
                            printf("thirteen");
                            return 0;
                        case 14:
                            printf("fourteen");
                            return 0;
                        case 15:
                            printf("fifteen");
                            return 0;
                        case 16:
                            printf("sixteen");
                            return 0;
                        case 17:
                            printf("seventeen");
                            return 0;
                        case 18:
                            printf("eighteen");
                            return 0;
                        case 19:
                            printf("nineteen");
                            return 0;
                        }
                        break;
                    case 2:
                        if (r1 != 0)
                            printf("twenty-");
                        else
                            printf("twenty");
                        break;
                    case 3:
                        if (r1 != 0)
                            printf("thirty-");
                        else
                            printf("thirty");
                        break;
                    case 4:
                        if (r1 != 0)
                            printf("forty-");
                        else
                            printf("forty");
                        break;
                    case 5:
                        if (r1 != 0)
                            printf("fifty-");
                        else
                            printf("fifty");
                        break;
                    case 6:
                        if (r1 != 0)
                            printf("sixty-");
                        else
                            printf("sixty");
                        break;
                    case 7:
                        if (r1 != 0)
                            printf("seventy-");
                        else
                            printf("seventy");
                        break;
                    case 8:
                        if (r1 != 0)
                            printf("eighty-");
                        else
                            printf("eighty");
                        break;
                    case 9:
                        if (r1 != 0)
                            printf("ninety-");
                        else
                            printf("ninety");
                        break;
                    }
                    switch(r1)
                    {
                    case 1:
                        printf("one");
                        break;
                    case 2:
                        printf("two");
                        break;
                    case 3:
                        printf("three");
                        break;
                    case 4:
                        printf("four");
                        break;
                    case 5:
                        printf("five");
                        break;
                    case 6:
                        printf("six");
                        break;
                    case 7:
                        printf("seven");
                        break;
                    case 8:
                        printf("eight");
                        break;
                    case 9:
                        printf("nine");
                        break;
                    }
                }
            }
            return 0;
        }
    case 4:
        {
            switch (a)
            {
            case 1000:
                printf("one thousand");
                break;
            case 2000:
                printf("two thousand");
                break;
            case 3000:
                printf("three thousand");
                break;
            case 4000:
                printf("four thousand");
                break;
            case 5000:
                printf("five thousand");
                break;
            case 6000:
                printf("six thousand");
                break;
            case 7000:
                printf("seven thousand");
                break;
            case 8000:
                printf("eight thousand");
                break;
            case 9000:
                printf("nine thousand");
                break;
            default:
                {
                    r1 = a % 10;
                    r12 = a % 100;
                    r123 = a % 1000;
                    a = a / 10;
                    r2 = a % 10;
                    a = a / 10;
                    r3  = a % 10;
                    a  = a / 10;
                    r4 = a % 10;
                    switch (r4)
                    {
                    case 1:
                        printf("one thousand ");
                        break;
                    case 2:
                        printf("two thousand ");
                        break;
                    case 3:
                        printf("three thousand ");
                        break;
                    case 4:
                        printf("four thousand ");
                        break;
                    case 5:
                        printf("five thousand ");
                        break;
                    case 6:
                        printf("six thousand ");
                        break;
                    case 7:
                        printf("seven thousand ");
                        break;
                    case 8:
                        printf("eight thousand ");
                        break;
                    case 9:
                        printf("nine thousand ");
                        break;
                    }
                    switch (r3)
                    {
                    case 0:
                        break;
                    case 1:
                        printf("one hundred ");
                        break;
                    case 2:
                        printf("two hundred ");
                        break;
                    case 3:
                        printf("three hundred ");
                        break;
                    case 4:
                        printf("four hundred ");
                        break;
                    case 5:
                        printf("five hundred ");
                        break;
                    case 6:
                        printf("six hundred ");
                        break;
                    case 7:
                        printf("seven hundred ");
                        break;
                    case 8:
                        printf("eight hundred ");
                        break;
                    case 9:
                        printf("nine hundred ");
                        break;
                    }
                    switch(r2)
                    {
                    case 0:
                        break;
                    case 1:
                        r1 = 0;
                        switch (r12)
                        {
                        case 10:
                            printf("ten");
                            return 0;
                        case 11:
                            printf("eleven");
                            return 0;
                        case 12:
                            printf("twelve");
                            return 0;
                        case 13:
                            printf("thirteen");
                            return 0;
                        case 14:
                            printf("fourteen");
                            return 0;
                        case 15:
                            printf("fifteen");
                            return 0;
                        case 16:
                            printf("sixteen");
                            return 0;
                        case 17:
                            printf("seventeen");
                            return 0;
                        case 18:
                            printf("eighteen");
                            return 0;
                        case 19:
                            printf("nineteen");
                            return 0;
                        }
                    case 2:
                        if (r1 != 0)
                            printf("twenty-");
                        else
                            printf("twenty");
                        break;
                    case 3:
                        if (r1 != 0)
                            printf("thirty-");
                        else
                            printf("thirty");
                        break;
                    case 4:
                        if (r1 != 0)
                            printf("forty-");
                        else
                            printf("forty");
                        break;
                    case 5:
                        if (r1 != 0)
                            printf("fifty-");
                        else
                            printf("fifty");
                        break;
                    case 6:
                        if (r1 != 0)
                            printf("sixty-");
                        else
                            printf("sixty");
                        break;
                    case 7:
                        if (r1 != 0)
                            printf("seventy-");
                        else
                            printf("seventy");
                        break;
                    case 8:
                        if (r1 != 0)
                            printf("eighty-");
                        else
                            printf("eighty");
                        break;
                    case 9:
                        if (r1 != 0)
                            printf("ninety-");
                        else
                            printf("ninety");
                        break;
                    }
                    switch(r1)
                    {
                    case 1:
                        printf("one");
                        break;
                    case 2:
                        printf("two");
                        break;
                    case 3:
                        printf("three");
                        break;
                    case 4:
                        printf("four");
                        break;
                    case 5:
                        printf("five");
                        break;
                    case 6:
                        printf("six");
                        break;
                    case 7:
                        printf("seven");
                        break;
                    case 8:
                        printf("eight");
                        break;
                    case 9:
                        printf("nine");
                        break;
                    }
                }
            }
            return 0;
        }

    case 5:
        {

            switch (a)
            {
            case 10000:
                printf("ten thousand");
                break;
            case 11000:
                printf("eleven thousand");
                break;
            case 12000:
                printf("twelve thousand");
                break;
            case 13000:
                printf("thirteen thousand");
                break;
            case 14000:
                printf("fourteen thousand");
                break;
            case 15000:
                printf("fifteen thousand");
                break;
            case 16000:
                printf("sixteen thousand");
                break;
            case 17000:
                printf("seventeen thousand");
                break;
            case 18000:
                printf("eighteen thousand");
                break;
            case 19000:
                printf("nineteen thousand");
                break;
            case 20000:
                printf("twenty thousand");
                break;
            case 30000:
                printf("thirty thousand");
                break;
            case 40000:
                printf("forty thousand");
                break;
            case 50000:
                printf("fifty thousand");
                break;
            case 60000:
                printf("sixty thousand");
                break;
            case 70000:
                printf("seventy thousand");
                break;
            case 80000:
                printf("eighty thousand");
                break;
            case 90000:
                printf("ninety thousand");
                break;
            default:
                {
                    r1 = a % 10;
                    r12 = a % 100;
                    r123 = a % 1000;
                    a = a / 10;
                    r2 = a % 10;
                    a = a / 10;
                    r3  = a % 10;
                    a  = a / 10;
                    r4 = a % 10;
                    r45 = a % 100;
                    a = a / 10;
                    r5 = a % 10;
                    switch(r5)
                    {
                    case 1:

                            r4 = 0;
                            switch (r45)
                            {
                            case 10:
                                printf("ten thousand");
                                break;
                            case 11:
                                printf("eleven thousand");
                                break;
                            case 12:
                                printf("twelve thousand");
                                break;
                            case 13:
                                printf("thirteen thousand");
                                break;
                            case 14:
                                printf("fourteen thousand");
                                break;
                            case 15:
                                printf("fifteen thousand");
                                break;
                            case 16:
                                printf("sixteen thousand");
                                break;
                            case 17:
                                printf("seventeen thousand");
                                break;
                            case 18:
                                printf("eighteen thousand");
                                break;
                            case 19:
                                printf("nineteen thousand");
                                break;
                            }
                            break;
                    case 2:
                        if (r4 != 0)
                            printf("twenty-");
                        else
                            printf("twenty thousand");
                        break;
                    case 3:
                        if (r4 != 0)
                            printf("thirty-");
                        else
                            printf("thirty thousand");
                        break;
                    case 4:
                        if (r4 != 0)
                            printf("forty-");
                        else
                            printf("forty thousand");
                        break;
                    case 5:
                        if (r4 != 0)
                            printf("fifty-");
                        else
                            printf("fifty thousand");
                        break;
                    case 6:
                        if (r4 != 0)
                            printf("sixty-");
                        else
                            printf("sixty thousand");
                        break;
                    case 7:
                        if (r4 != 0)
                            printf("seventy-");
                        else
                            printf("seventy thousand");
                        break;
                    case 8:
                        if (r4 != 0)
                            printf("eighty-");
                        else
                            printf("eighty thousand");
                        break;
                    case 9:
                        if (r4 != 0)
                            printf("ninety-");
                        else
                            printf("ninety thousand");
                        break;
                    }
                    switch(r4)
                    {
                    case 0:
                        break;
                    case 1:
                        printf("one thousand");
                        break;
                    case 2:
                        printf("two thousand");
                        break;
                    case 3:
                        printf("three thousand");
                        break;
                    case 4:
                        printf("four thousand");
                        break;
                    case 5:
                        printf("five thousand");
                        break;
                    case 6:
                        printf("six thousand");
                        break;
                    case 7:
                        printf("seven thousand");
                        break;
                    case 8:
                        printf("eight thousand");
                        break;
                    case 9:
                        printf("nine thousand");
                        break;
                    }
                    switch (r3)
                    {
                    case 0:
                        break;
                    case 1:
                        printf(" one hundred");
                        break;
                    case 2:
                        printf(" two hundred");
                        break;
                    case 3:
                        printf(" three hundred");
                        break;
                    case 4:
                        printf(" four hundred");
                        break;
                    case 5:
                        printf(" five hundred");
                        break;
                    case 6:
                        printf(" six hundred");
                        break;
                    case 7:
                        printf(" seven hundred");
                        break;
                    case 8:
                        printf(" eight hundred");
                        break;
                    case 9:
                        printf(" nine hundred");
                        break;
                    }
                    switch(r2)
                    {
                    case 0:
                        break;
                    case 1:
                        r1 = 0;
                        switch (r12)
                        {
                        case 10:
                            printf(" ten");
                            return 0;
                        case 11:
                            printf(" eleven");
                            return 0;
                        case 12:
                            printf(" twelve");
                            return 0;
                        case 13:
                            printf(" thirteen");
                            return 0;
                        case 14:
                            printf(" fourteen");
                            return 0;
                        case 15:
                            printf(" fifteen");
                            return 0;
                        case 16:
                            printf(" sixteen");
                            return 0;
                        case 17:
                            printf(" seventeen");
                            return 0;
                        case 18:
                            printf(" eighteen");
                            return 0;
                        case 19:
                            printf(" nineteen");
                            return 0;
                        }
                    case 2:
                        if (r1 != 0)
                            printf(" twenty-");
                        else
                            printf(" twenty");
                        break;
                    case 3:
                        if (r1 != 0)
                            printf(" thirty-");
                        else
                            printf(" thirty");
                        break;
                    case 4:
                        if (r1 != 0)
                            printf(" forty-");
                        else
                            printf(" forty");
                        break;
                    case 5:
                        if (r1 != 0)
                            printf(" fifty-");
                        else
                            printf(" fifty");
                        break;
                    case 6:
                        if (r1 != 0)
                            printf(" sixty-");
                        else
                            printf(" sixty");
                        break;
                    case 7:
                        if (r1 != 0)
                            printf(" seventy-");
                        else
                            printf(" seventy");
                        break;
                    case 8:
                        if (r1 != 0)
                            printf(" eighty-");
                        else
                            printf(" eighty");
                        break;
                    case 9:
                        if (r1 != 0)
                            printf(" ninety-");
                        else
                            printf(" ninety");
                        break;
                    }
                    switch(r1)
                    {
                    case 1:
                        if(r2 == 0)
                        printf(" one");
                        else printf("one");
                        break;
                    case 2:
                        if (r2 == 0)
                        printf(" two");
                        else printf("two");
                        break;
                    case 3:
                        if(r2 == 0)
                        printf(" three");
                        else printf("three");
                        break;
                    case 4:
                        if (r2 == 0)
                        printf(" four");
                        else printf("four");
                        break;
                    case 5:
                        if (r2 == 0)
                        printf(" five");
                        else
                        printf("five");
                        break;
                    case 6:
                        if (r2 == 0)
                        printf(" six");
                        else
                        printf("six");
                        break;
                    case 7:
                        if (r2 == 0)
                        printf(" seven");
                        else
                            printf("seven");

                        break;
                    case 8:
                        if(r2 == 0)
                        printf(" eight");
                        else
                            printf("eight");
                        break;
                    case 9:
                        if(r2 == 0)
                        printf(" nine");
                        else
                            printf("nine");
                        break;
                    }
                }
            }
            return 0;
        }
    }
    return 0;
}