If you are displaying plain text, use "Content-type: text/plain\n\n" instead. Otherwise, I would recommend finding an HTML primer.

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