my @infile = <>; # Reads file

##</code><code>##

   ### Define the sort key here ###
   # Sorts in ascending order.
    sub key1  { ( substr( $a, 3, 17 )) cmp ( substr( $b, 3, 17 )); }
     # Sorts  descending order.
    sub key2  { ( substr( $b, 20, 2 )) cmp ( substr( $a, 20, 2 )); }
    #