TO CHECK WHETHER INPUTTED CHARACTER IS DIGIT OR ALPHABET

#include<stdio.h>
void main()
{
    char ch;
    printf("Enter a charecter");
    scanf("%c",&ch);
    if((ch >= 65 && ch <= 90) || (ch >= 97 && ch <=    122))
        printf("Entered charector is alphabet");
    else if(ch >= 48 && ch <= 57)
        printf("Entered charector is digit");
}