Apologies for the U rather than the P; maybe I will rewrite it. :) This is my first bit of obfuscated Perl! 
$_='>=====?===@>A==?=A>@?=?=>=B==?>>==@>==>==>A?>?@===>';while($!
<51){$.=substr$_,$!;$\.=++$!%2x((ord$.)-60)}$\=($.x7).$\;$![$*++]
=[chr(oct"0b$/"),":$/\n"]while$/=substr($\,$[,7)="";for(;$@<=@!;)
{@_=@{$![$@++]};print@_,map{if(@$_[0]==$@){print@{$![$/]}while($@
!=($/=pop(@$_)))}}([9,3],[12,6,1,4],[14,5,8,4],[16,10,9])};#kjd:)

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In reply to jauh by kjd

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