--START--

IF ($PID = FORK())
{
   SLEEP(1);
   open file;
   WRITE 'ALPHA';
   close file;
   SLEEP(5);
   open file;
   WRITE 'BETA';
   close file;
}

ELSE (DEFINED $PID)
{
   SLEEP(3);
   open file;
   READ THE FILE;
   close file;
   SLEEP(7);
   open file;
   READ THE FILE;
   close file;
}

--DONE--