$ab=0;
while ( $ab < $count)
{
      if ( $matrix[$ab][0] == $row[2])
      {
          if (1000 <= $total_packages)
          {
            push(@MASTER, $row[0].":".$row[1].":$matrix[$ab][3]:".$total_packages.":AI"); last SWITCH; }
            }
       $ab ++;
}