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  1. or download this
    use strict;
use warnings;
...
PPPPP|QQQQQ|RRRRR|SSSSS|TTTTT|11111|22222|33333|44444|55555|
UUUUU|VVVVV|WWWWW|XXXXX|YYYYY|11111|22222|33333|44444|55555|
ZZZZZ|aaaaa|bbbbb|ccccc|ddddd|11111|22222|33333|44444|55555|
  2. or download this
    Benchmark: timing 100000 iterations of SPLIT, UNPACK...
  SPLIT: 25 wallclock secs (23.92 usr +  0.01 sys = 23.93 CPU)
      @ 4178.16/s (n=100000)
  UNPACK: 26 wallclock secs (25.62 usr +  0.01 sys = 25.63 CPU)
      @ 3902.13/s (n=100000)