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