a-a a-b aaa aab aad aah aak aan aas ab- aba abb abd abh abk abn abs ad- ada adb add adh adk adn ads aha ahb ahd ahh ahk ahn ahs aka akb akd akh akk akn aks an- ana anb and anh ank ann ans as- asa asb asd ash ask asn ass baa bab bad bah bak ban bas bba bbb bbd bbh bbk bbn bbs bda bdb bdd bdh bdk bds bha bhb bhd bhh bhk bhs bka bkb bkk bkn bks bna bnb bnd bnk bnn bns bsa bsb bsd bsh bsk bsn bss daa dab dad dah dak dan das dba dbb dbd dbh dbk dbn dbs dda ddb ddd ddh ddk ddn dds dh- dha dhb dhd dhh dhk dhs dka dkb dkk dks dna dnb dnd dnh dnk dnn dns dsa dsb dsd dsh dsk dsn dss haa hab had hah hak han has hba hbb hbd hbh hbk hbn hbs hda hdb hdd hdh hdk hdn hds hha hhb hhd hhh hhk hhn hhs hka hkb hkd hkh hkk hkn hks hna hnb hnd hnh hnk hnn hns hsa hsb hsd hsh hsk hsn hss ka- kaa kab kad kah kak kan kas kba kbb kbd kbh kbk kbn kbs kda kdb kdh kdk kds kha khh khk khn khs kkb kkh kkk kkn kks kn- kna knd knk knn ksa ksb ksd ksh ksk ksn kss naa nab nad nah nak nan nas nba nbb nbd nbk nbn nbs nda ndb ndd ndh ndk ndn nds nha nhb nhd nhh nhk nhn nhs nka nkk nkn nks nna nnb nnh nnk nnn nns nsa nsb nsd nsh nsk nsn nss saa sab sad sah sak san sas sba sbb sbd sbh sbk sbn sbs sda sdb sdd sdh sdk sdn sds sh- sha shb shd shh shk shn shs sk- ska skb skd skh skk sks sna snb snd snk snn sns ss- ssa ssb ssd ssh ssk ssn sss