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$str = pack('C*',48,49,50,51,52); print "$str\n"; @chars = unpack('C*',$str); print join(', ',@chars),"\n";
012345 48, 49, 50, 51, 52
--- print map { my ($m)=1<<hex($_)&11?' ':''; $m.=substr('AHJPacehklnorstu',hex($_),1) } split //,'2fde0abe76c36c914586c';