main()
{
 char a,c;
 clrscr();
 printf("\nMENU:\n1.F1\n2.ESC\n3.ENTER\nPRESS A KEY...");
 a=getch();
 if(a==0)
 {
  printf("\nASCII CODE : %d",a);
  c=getch();
  printf("\nSCAN CODE : %d",c);
 }
 else
   printf("\nASCII CODE : %d",a);
 getch();
}