c:\@Work\Perl\monks\kschwab>perl test_LUHN_1.pl
tested cc number range kschwab vs. AnomalousMonk ok
tested cc number range kschwab vs. BrowserUk ok
                 Rate   cd_kschwab cd_BrowserUk        cd_AM
cd_kschwab    52764/s           --         -40%         -62%
cd_BrowserUk  88033/s          67%           --         -37%
cd_AM        139999/s         165%          59%           --