Alphabet digit or special character program in C

#include <stdio.h>
int main()
{
	char ch;
	
	printf("Enter any character: ");
	scanf("%c", &ch);
	
	if((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z'))
	{
		printf("'%c' is alphabet.", ch);
	}
	else if(ch >= '0' && ch <= '9')
	{
		printf("'%c' is digit.", ch);
	}
	else
	{
		printf("'%c' is special character.", ch);
	}
	
	return 0;
}