upper,small,number,symbol using ascii value

#include<stdio.h>
#include<conio.h>
main()
{
char in;
clrscr();
printf("\nenter a alphabet");
scanf("\n%c",&in);
if(in>65 && in<90)
printf("\nupper case");
else if(in>92 && in<122)
printf("\nsmall letter");
else if(in>47 && in<65)
printf("\nits a number");
else
printf("\nsymbol");
getch();
return 0;
}                              //OUTPUT

enter a alphabetr                                                               
                                                                                
small letter