NUmber to Words conversation

#include <stdio.h>

int main()
{
    int n, num = 0;

    /* Input number from user */
    printf("Enter any number to print in words: ");
    scanf("%d", &n);

    /* Store reverse of n in num */
    while(n != 0)
    {
        num = (num * 10) + (n % 10);
        n /= 10;
    }

    /* 
     * Extract last digit of number and print corresponding digit in words
     * till num becomes 0
     */
    while(num != 0)
    {
        switch(num % 10)
        {
            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;
        }
        
        num = num / 10;
    }

    return 0;
}