cmpthese(-3, {
      cc => sub { 'asdfasdfXasdfasdfXsdfasdfXasdfasdf111XYZ' =~ /(?:[^X]*X)+?YZ/  },
      ds => sub { 'asdfasdfXasdfasdfXsdfasdfXasdfasdf111XYZ' =~ /.*?XYZ/  },
    });