a-a a-b a-c aaa aab aac aah aam aan aar aas ab- aba abb abc abh abm abn abr abs ac- aca acb acc ach acm acn acr acs aha ahb ahc ahh ahm ahn ahr ahs ama amb amc amh amm amn amr ams an- ana anb anc anh anm ann anr ans ar- ara arb arc arh arm arn arr ars as- asa asb asc ash asm asn asr ass baa bab bac bah bam ban bar bas bba bbb bbc bbh bbm bbn bbr bbs bca bcb bcc bch bcm bcn bcr bcs bha bhb bhc bhh bhm bhr bhs bma bmb bmc bmh bmm bmn bmr bms bna bnb bnc bnn bnr bns bra brb brh brm brn brr brs bsa bsb bsc bsh bsm bsn bsr bss c-- caa cab cac cah cam can car cas cba cbb cbc cbh cbm cbn cbr cbs cca ccb ccc cch ccm ccn ccr ccs ch- cha chb chc chh chm chn chr chs cma cmb cmc cmh cmm cmn cmr cms cn- cna cnb cnc cnh cnm cnn cnr cns cra crb crc crh crm crn crr crs csa csb csc csh csm csn csr css haa hab hac hah ham han har has hba hbb hbc hbh hbm hbn hbr hbs hca hcb hcc hch hcm hcn hcr hcs hha hhb hhc hhh hhm hhn hhr hhs hma hmb hmc hmh hmm hmr hms hna hnb hnc hnh hnn hns hr- hra hrb hrc hrh hrm hrn hrr hrs hsa hsb hsc hsh hsm hsn hsr hss m-r maa mab mac mah mam man mar mas mba mbb mbc mbh mbm mbr mbs mc- mca mcb mcc mch mcm mcn mcr mcs mha mhc mhh mhm mhn mhr mhs mma mmb mmc mmh mmm mmn mmr mms mna mnb mnc mnm mnn mnr mns mra mrb mrc mrh mrm mrn mrr mrs msa msb msc msh msm msn msr mss naa nab nac nah nam nan nar nas nba nbb nbc nbm nbn nbr nbs nca ncb ncc nch ncm ncn ncr ncs nha nhb nhc nhh nhm nhn nhr nhs nma nmb nmc nmh nmm nmn nmr nms nna nnb nnc nnh nnm nnn nns nra nrb nrc nrm nrn nrr nrs nsa nsb nsc nsh nsm nsn nsr nss ra- raa rab rac rah ram ran rar ras rba rbb rbc rbh rbm rbn rbr rbs rca rcb rcc rch rcm rcn rcr rcs rh- rha rhb rhc rhh rhm rhn rhr rhs rma rmb rmc rmh rmm rmn rmr rms rna rnb rnc rnh rnm rnn rnr rns rra rrb rrc rrh rrm rrn rrr rrs rsa rsb rsc rsh rsm rsn rsr rss saa sab sac sah sam san sar sas sba sbb sbc sbh sbm sbn sbr sbs sca scb scc sch scm scn scr scs sh- sha shb shc shh shm shn shr shs sma smb smc smh smm smn smr sms sna snb snc snm snn snr sns sr- sra srb src srh srm srn srr srs ss- ssa ssb ssc ssh ssm ssn ssr sss

-ana a-ha aaaa aaab aaac aaah aaam aaan aaar aaas aaba aabb aabc aabh aabm aaca aacb aacc aach aacm aacn aacr aacs aaha aahs aama aamb aamc aamn aamr aams aana aara aarc aarm aars aasa aasc aasm aass abaa abab abac abam aban abar abas abb- abba abbb abbr abbs abca abcb abcc abch abcn abcr abcs abha abhm abhr abhs abma abmb abmc abms abra abrc abrs abs- absa abss acaa acab acac acan acar acas acba acca accc acch accm accs acha achh achr achs acma acmc acmh acms acr- acra acrc acrm acrr acrs acsa acsc acsm acss ahab ahac ahah aham ahar ahas ahha ahhs ahmc ahms ahra ahrc ahrr ahrs ahsa ahss amaa amac amah amam aman amar amas amb- amba ambn ambr ambs amca amcc amcs amhs amm- amma amns amra amrc amsa amsc amsn amss ana- anaa anab anac anah anam anan anar anas anba anbb anca ancc anha anhs anma anna annb anns anrc ansa arab arac arah aram aran arar aras arba arbh arbs arc- arca arch arcm arcs arh- arhs arma armc armh armm arms arna arns arr- arra arrc arrh arrr arrs ars- arsa arsc asaa asab asac asah asam asan asar asas asba asbm asc- asca ascb ascc asch ascr asha ashs asma asmm asmr asms asnc asra asrc asrm asrs assa assc assh assn assr asss baaa baah baam baan baar baas baba babb babm babr babs bac- baca bacc bach bacn bacs baha bahn bahr bahs bama bamb bamc bamm bamn bams bana banc banh bann banr bans bar- bara barb barc barh barm barn barr bars basa basc bash bass bbas bbbb bbbs bbch bbcm bbhs bbrc bcaa bcam bcar bcas bcbc bcbs bcca bccc bccm bccs bchs bcma bcms bcra bcrs bcsa bcsc bcsm bcsn bcss bhan bhar bhca bhcc bhhs bhms bhra bmaa bman bmhs bmnh bnas bnhs bnrr bnss brab brac brah bram bran bras brca brcb brhs brmc brna brns brrm brrr brrs brsb brsr bsaa bsac bsam bsas bscs bshs bsms bsns bsra bsrm bssc bssm caaa caab caac caah caam caan caas caba cabs cac- caca cacc cach cacm cacr caha cahn cahs cama camb camc camh camm cams cana canc canh cann cans cara carb carc carm carn carr cars casa casb casc cash casm casr cass cbac cbar cbbc cbbs cbca cbcc cbcm cbcn cbcr cbcs cbha cbhs cbms cbna cbrh cbrm cbrn cbsa cbsc cbsm cbsn ccaa ccab ccac ccam ccar ccas ccba ccbc ccbn ccca cccb cccc cccm cccs ccha cchr cchs ccma ccmb ccmc ccmm ccms ccna ccnb ccnc ccnm ccnr ccns ccra ccrc ccrs ccsa ccsn ccss chaa chab chac chah cham chan char chas chca chch chcm chcs chha chhs chmb chmc chmn chms chnb chnc chnm chnr chns chra chrb chrc chrn chrr chrs chsc chsh chsm chsr cmaa cmac cmah cmas