a-a aaa aad aak aan aar aas ad- ada add adk adn adr ads aka akd akk akn akr aks an- ana and ank ann anr ans ar- ara ard ark arn arr ars as- asa asd ask asn asr ass daa dad dak dan dar das dda ddd ddk ddn ddr dds dka dkk dkr dks dna dnd dnk dnn dnr dns dra drd drk drn drr drs dsa dsd dsk dsn dsr dss ka- kaa kad kak kan kar kas kda kdk kdr kds kkk kkn kkr kks kn- kna knd knk knn knr kra krd krk krn krr krs ksa ksd ksk ksn ksr kss naa nad nak nan nar nas nda ndd ndk ndn ndr nds nka nkk nkn nkr nks nna nnk nnn nns nra nrd nrk nrn nrr nrs nsa nsd nsk nsn nsr nss ra- raa rad rak ran rar ras rda rdd rdn rdr rds rkk rks rna rnd rnn rnr rns rra rrd rrk rrn rrr rrs rsa rsd rsk rsn rsr rss saa sad sak san sar sas sda sdd sdk sdn sdr sds sk- ska skd skk skr sks sna snd snk snn snr sns sr- sra srd srk srn srr srs ss- ssa ssd ssk ssn ssr sss