Determine a Character Type

#include <stdio.h>

int main()
{
    char ch;

    scanf("%c", &ch);

    if(ch >= 'a' && ch <= 'z')
                printf("Small letter\n");
        else if(ch >= 'A' && ch <= 'Z')
                printf("Capital letter\n");
        else if(ch >= '0' && ch <= '9')
                printf("Digit\n");
        else
                printf("Punctuation");

    return 0;
}