in reply to issue in regular expression

It works for me:
#!/usr/bin/perl use warnings; use strict; use feature qw{ say }; my @temp = do { no warnings 'qw'; qw( a b c #%# #%#a #%#b ) }; @temp = grep /#%#/ && ! /#%#$/, @temp; say "@temp.";
Output:
#%#a #%#b.

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord }map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,