WAP to Nested macro expansion

/*WAP to Nested macro expansion*/

#include<stdio.h>
#include<conio.h>
#define AND &&
#define ARANGE ( a > 25 AND a < 50 )
main( )
{
 int  a = 30 ;

 if ( ARANGE )
  printf ( "within range" ) ;
 else
  printf ( "out of range" ) ;
 getch();
}