a-a a-b a-c aaa aab aac aah aak aan aar aas ab- aba abb abc abh abk abn abr abs ac- aca acb acc ach ack acn acr acs aha ahb ahc ahh ahk ahn ahr ahs aka akb akc akh akk akn akr aks an- ana anb anc anh ank ann anr ans ar- ara arb arc arh ark arn arr ars as- asa asb asc ash ask asn asr ass baa bab bac bah bak ban bar bas bba bbb bbc bbh bbk bbn bbr bbs bca bcb bcc bch bck bcn bcr bcs bha bhb bhc bhh bhk bhr bhs bka bkb bkc bkk bkn bkr bks bna bnb bnc bnk bnn bnr bns bra brb brh brk brn brr brs bsa bsb bsc bsh bsk bsn bsr bss c-- caa cab cac cah cak can car cas cba cbb cbc cbh cbk cbn cbr cbs cca ccb ccc cch cck ccn ccr ccs ch- cha chb chc chh chk chn chr chs cka ckb ckc ckh cks cn- cna cnb cnc cnh cnn cnr cns cra crb crc crh crk crn crr crs csa csb csc csh csk csn csr css haa hab hac hah hak han har has hba hbb hbc hbh hbk hbn hbr hbs hca hcb hcc hch hck hcn hcr hcs hha hhb hhc hhh hhk hhn hhr hhs hka hkb hkh hkk hkn hkr hks hna hnb hnc hnh hnk hnn hns hr- hra hrb hrc hrh hrk hrn hrr hrs hsa hsb hsc hsh hsk hsn hsr hss ka- kaa kab kac kah kak kan kar kas kba kbb kbc kbh kbk kbn kbr kbs kca kcb kcc kch kck kcn kcr kcs kha khh khk khn khr khs kkb kkc kkh kkk kkn kkr kks kn- kna knc knk knn knr kra krc krk krn krr krs ksa ksb ksc ksh ksk ksn ksr kss naa nab nac nah nak nan nar nas nba nbb nbc nbk nbn nbr nbs nca ncb ncc nch nck ncn ncr ncs nha nhb nhc nhh nhk nhn nhr nhs nka nkc nkk nkn nkr nks nna nnb nnc nnh nnk nnn nns nra nrb nrc nrk nrn nrr nrs nsa nsb nsc nsh nsk nsn nsr nss ra- raa rab rac rah rak ran rar ras rba rbb rbc rbh rbk rbn rbr rbs rca rcb rcc rch rcn rcr rcs rh- rha rhb rhc rhh rhn rhr rhs rkb rkc rkk rks rna rnb rnc rnh rnn rnr rns rra rrb rrc rrh rrk rrn rrr rrs rsa rsb rsc rsh rsk rsn rsr rss saa sab sac sah sak san sar sas sba sbb sbc sbh sbk sbn sbr sbs sca scb scc sch sck scn scr scs sh- sha shb shc shh shk shn shr shs sk- ska skb skc skh skk skr sks sna snb snc snk snn snr sns sr- sra srb src srh srk srn srr srs ss- ssa ssb ssc ssh ssk ssn ssr sss

-ana a-ak a-ha aaaa aaab aaac aaah aaan aaar aaas aaba aabb aabc aabh aaca aacb aacc aach aack aacn aacr aacs aaha aahk aahs aaka aana aara aarc aars aasa aasc aass abaa abab abac abak aban abar abas abb- abba abbb abbr abbs abca abcb abcc abch abcn abcr abcs abha abhr abhs abra abrc abrs abs- absa abss acaa acab acac acan acar acas acba acca accc acch accs acha achh achr achs acks acr- acra acrc acrr acrs acsa acsc acss ahab ahac ahah ahar ahas ahha ahhs ahra ahrc ahrr ahrs ahsa ahss akaa akah akan akar akas akca akha akhs akka akna akr- akra aksa ana- anaa anab anac anah anak anan anar anas anba anbb anca ancc anha anhs ank- anka ankh anna annb anns anrc ansa arab arac arah arak aran arar aras arba arbh arbs arc- arca arch arcs arh- arhs arka arkh arks arna arnk arns arr- arra arrc arrh arrk arrr arrs ars- arsa arsc arsk asaa asab asac asah asak asan asar asas asba asc- asca ascb ascc asch ascr asha ashk ashs aska askr asks asnc asra asrc asrs assa assc assh assk assn assr asss baaa baah baak baan baar baas baba babb babr babs bac- baca bacc bach back bacn bacs baha bahn bahr bahs bak- baka bakh bakr baks bana banc banh bank bann banr bans bar- bara barb barc barh bark barn barr bars basa basc bash bask bass bbas bbbb bbbs bbch bbhs bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bchs bcra bcrs bcsa bcsc bcsn bcss bhan bhar bhca bhcc bhhs bhra bkhs bnas bnhs bnrr bnss brab brac brah brak bran bras brca brcb brhs brka brkb brna brns brrr brrs brsb brsr bsaa bsac bsas bscs bshs bsns bsra bssc caaa caab caac caah caan caas caba cabs cac- caca cacc cach cack cacr caha cahn cahs caka cana canc canh cank cann cans cara carb carc cark carn carr cars casa casb casc cash cask casr cass cbac cbar cbbc cbbs cbca cbcc cbcn cbcr cbcs cbha cbhs cbka cbkn cbkr cbna cbrh cbrn cbsa cbsc cbsn ccaa ccab ccac ccar ccas ccba ccbc ccbn ccca cccb cccc cccs ccha cchr cchs ccna ccnb ccnc ccnr ccns ccra ccrc ccrs ccsa ccsn ccss chaa chab chac chah chak chan char chas chca chch chcs chha chhs chka chkb chks chnb chnc chnr chns chra chrb chrc chrn chrr chrs chsc chsh chsr ckac ckan ckbc ckch ckck ckcs ckhs cknb cknc ckns ckrc cksa cksb cksh cnaa cnac cnas cnbc cnhs cnna cnrc cnrr cnsa cnss crab crac cran crar cras crbc crca crcc crcr crhs crkc crna crns crsa crss csaa csab csac csak csar csas cscb cscc csch cscr cscs cshs cska csks csra csrc csrs cssa cssr haab haak haan haar haas haba habs hack hacs haha hahn hahs haka hakk haks hana hanc hank hann hans hara harc harh hark harn harr