a-a a-b a-c aaa aab aac aad aah aak aas aau ab- aba abb abc abd abh abk abs abu ac- aca acb acc acd ach ack acs acu ad- ada adb adc add adh adk ads adu aha ahb ahc ahd ahh ahk ahs ahu aka akb akc akd akh akk aks aku as- asa asb asc asd ash ask ass asu au- aua aub auc aud auh auk aus b-u baa bab bac bad bah bak bas bau bba bbb bbc bbd bbh bbk bbs bbu bca bcb bcc bcd bch bck bcs bcu bda bdb bdc bdd bdh bdk bds bdu bha bhb bhc bhd bhh bhk bhs bhu bka bkb bkc bkk bks bsa bsb bsc bsd bsh bsk bss bsu bua bub buc bud buh buk bus buu c-- caa cab cac cad cah cak cas cau cba cbb cbc cbd cbh cbk cbs cbu cca ccb ccc ccd cch cck ccs ccu cda cdb cdc cdd cdh cdk cds cdu ch- cha chb chc chd chh chk chs chu cka ckb ckc ckd ckh cks csa csb csc csd csh csk css csu cua cub cuc cud cuh cuk cus cuu daa dab dac dad dah dak das dau dba dbb dbc dbd dbh dbk dbs dbu dca dcb dcc dcd dck dcs dcu dda ddb ddc ddd ddh ddk dds ddu dh- dha dhb dhc dhd dhh dhk dhs dhu dka dkb dkc dkk dks dku dsa dsb dsc dsd dsh dsk dss dsu dua dub duc dud duh duk dus haa hab hac had hah hak has hau hba hbb hbc hbd hbh hbk hbs hbu hca hcb hcc hcd hch hck hcs hda hdb hdc hdd hdh hdk hds hdu hha hhb hhc hhd hhh hhk hhs hhu hka hkb hkd hkh hkk hks hku hsa hsb hsc hsd hsh hsk hss hsu hua hub huc hud huh huk hus huu ka- kaa kab kac kad kah kak kas kau kba kbb kbc kbd kbh kbk kbs kbu kca kcb kcc kcd kch kck kcs kcu kda kdb kdc kdh kdk kds kdu kha khh khk khs khu kkb kkc kkh kkk kks kku ksa ksb ksc ksd ksh ksk kss ksu kub kuc kud kuh kuk kus kuu saa sab sac sad sah sak sas sau sba sbb sbc sbd sbh sbk sbs sbu sca scb scc scd sch sck scs scu sda sdb sdc sdd sdh sdk sds sdu sh- sha shb shc shd shh shk shs shu sk- ska skb skc skd skh skk sks sku ss- ssa ssb ssc ssd ssh ssk sss ssu sua sub suc sud suh suk sus suu ua- uaa uab uac uad uah uak uas uau uba ubb ubc ubh ubk ubs ubu uca ucb ucc ucd uch uck ucs ucu uda udb udc udd udk uds udu uha uhb uhc uhd uhh uhs uhu uka ukb ukc ukk uku usa usb usc usd ush usk uss usu uua uuc uus uuu

a-ak a-ha aaaa aaab aaac aaad aaah aaas aaba aabb aabc aabd aabh aaca aacb aacc aacd aach aack aacs aacu aada aadc aads aadu aaha aahk aahs aaka aaku aasa aasc aasd aass aasu aaus abaa abab abac abad abak abas abau abb- abba abbb abbs abca abcb abcc abcd abch abcs abda abdu abha abhs abs- absa absd abss absu abua abud abuk abus acaa acab acac acad acas acba acca accc accd acch accs accu acda acdb acdc acds acha achh achs achu ackd acks acsa acsc acsd acss acu- acus adaa adab adac adad adah adak adas adba adbc adcc adcs adda addc addd adds addu adha adhd adhs adhu adsa adss adua adub aduk ahab ahac ahad ahah ahas ahau ahha ahhs ahsa ahss ahua ahus akaa akah akas akca akha akhs akka akku aksa aksu akua asaa asab asac asad asah asak asas asau asba asbu asc- asca ascb ascc asch asda asds asha ashk ashs ashu aska asks assa assc assd assh assk asss assu asub asud asus auaa auca auch audc audh auks ausa ausd aush ausu baaa baad baah baak baas baba babb babs babu bac- baca bacc bach back bacs bada badb badd badh bads badu baha bahs bahu bak- baka bakh baks baku basa basc bash bask bass basu bau- baud bauk bbad bbas bbau bbbb bbbs bbch bbdd bbhs bcaa bcas bcbc bcbs bcca bccc bccs bcda bcds bchd bchs bcsa bcsc bcss bcuc bdbc bddc bddh bdhs bdsd bhca bhcc bhhs bhuu bkhs bsaa bsac bsas bsbd bscs bshs bssc bssd buad buba bubb bubs bubu buca bucc buch buck bucs bucu buda budb budd buds budu buha buhs buka bukh bukk buku busa busc bush busk buss busu buus c-cd caaa caab caac caah caas caba cabs cabu cac- caca cacc cach cack cada cadc cadd cads cadu caha cahs caka casa casb casc casd cash cask cass casu cauc cauk caus cbac cbbc cbbs cbca cbcc cbcs cbcu cbdb cbdc cbds cbha cbhs cbka cbsa cbsc cbus ccaa ccab ccac ccad ccas ccba ccbc ccca cccb cccc cccs cccu ccdc ccdh ccds ccha cchs ccsa ccsd ccss ccuc ccus cdaa cdac cdad cdba cdcs cdda cddb cdhs cdss chaa chab chac chad chah chak chas chau chca chch chcs chha chhs chka chkb chks chsc chsh chua chub chud chuk chus ckac ckbc ckch ckck ckcs ckdu ckhs cksa cksb cksh csaa csab csac csak csas cscb cscc cscd csch cscs csda csdb cshs cska csks cssa cssd csua csus cuau cub- cuba cubb cubs cuca cucc cuck cuda cuds cuk- cuka cusa cusb cusd cush cusk cuss cusu daab daad daas daau daba dabb dabs dabu daca dacs dada dads dadu daha dahs dahu daka daks daku dasa dasb dasc dasd dash dask dass daub daud dauk daus dbas dbcc dbcs dbhs dbsa dbss dbus dcas dcbc dcca dccb dccc dccs dccu dcdb dcds dchs dcsc dcss dddd ddss ddub dhaa dhad dhak dhau