CGI is for parsing the environment passed to a web application. It handles parsing of variables returning from forms and other information passed to the application from the web server. It can also be used to assist in HTTP header and HTML generation. If your application is not being run by a web server in response to a browser request, you don't need to use CGI.

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print map { my ($m)=1<<hex($_)&11?' ':'';
$m.=substr('AHJPacehklnorstu',hex($_),1) }
split //,'2fde0abe76c36c914586c';
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