How to write the reverse of a number in words?

CODE

How to write the reverse of a number in words?

int main()

{

    int n,r;

    printf("\n Enter the number:");

    scanf("%d",&n);

    while(n!=0)

    {

        r=n%10;

        if(r==1)

            printf(" One");

        else if(r==2)

            printf(" Two");

        else if(r==3)

            printf(" Three");

        else if(r==4)

            printf(" Four");

        else if(r==5)

            printf(" Five");

        else if(r==6)

            printf(" Six");

        else if(r==7)

            printf(" Seven");

        else if(r==8)

            printf(" Eight");

        else if(r==9)

            printf(" Nine");

        else

            printf(" Zero");

        n=n/10;

    }

}

Output:

 Enter the number: 567

 Seven Six Five