Perl Regex: usage of non capturing, (more powerful split)

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#! perl -w$/ = "/n";use Data::Dumper;#usage of non capturing, (more powerful split)
___FCKpd___0
= '12a34b5';print "string = ".
___FCKpd___0
."/n";@num = split /(a|b)/;print "capturing/n";print Dumper(/@num);print "/n";@num = split /(?:a|b)/;print "non capturing/n";print Dumper(/@num);