C program to check whether a character is alphabet or not

#include<stdio.h>
int main()
{
	char ch;
	printf("Enter Character: ");
	scanf("%c",&ch);
	
	if((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z'))
	{
		printf("Character is Alphabet",ch);
	}
	else
	{
		printf("You have not Enter Alphabet");
	}
	
	return 0;
}

Output

Enter Character: r
Character is Alphabet