a-a a-b a-c aaa aab aac aah aam aao aar aas ab- aba abb abc abh abm abo abr abs ac- aca acb acc ach acm aco acr acs aha ahb ahc ahh ahm aho ahr ahs ama amb amc amh amm amo amr ams aoa aob aoc aoh aom aoo aor aos ar- ara arb arc arh arm aro arr ars as- asa asb asc ash asm aso asr ass baa bab bac bah bam bao bar bas bba bbb bbc bbh bbm bbo bbr bbs bca bcb bcc bch bcm bco bcr bcs bha bhb bhc bhh bhm bho bhr bhs bma bmb bmc bmh bmm bmo bmr bms boa bob boc boh bom boo bor bos bra brb brh brm bro brr brs bsa bsb bsc bsh bsm bso bsr bss c-- caa cab cac cah cam cao car cas cba cbb cbc cbh cbm cbo cbr cbs cca ccb ccc cch ccm cco ccr ccs ch- cha chb chc chh chm cho chr chs cma cmb cmc cmh cmm cmo cmr cms co- coa cob coc coh com coo cor cos cra crb crc crh crm cro crr crs csa csb csc csh csm cso csr css haa hab hac hah ham hao har has hba hbb hbc hbh hbm hbo hbr hbs hca hcb hcc hch hcm hco hcr hcs hha hhb hhc hhh hhm hho hhr hhs hma hmb hmc hmh hmm hmo hmr hms hoa hob hoc hoh hom hoo hor hos hr- hra hrb hrc hrh hrm hro hrr hrs hsa hsb hsc hsh hsm hsr hss m-o m-r maa mab mac mah mam mao mar mas mba mbb mbc mbh mbm mbo mbr mbs mc- mca mcb mcc mch mcm mco mcr mcs mha mhc mhh mhm mho mhr mhs mma mmb mmc mmh mmm mmo mmr mms moa mob moc moh mom moo mor mos mra mrb mrc mrh mrm mro mrr mrs msa msb msc msh msm mso msr mss oaa oab oac oah oam oao oar oas ob- oba obb obc obh obm obo obr obs oc- oca ocb occ och ocm oco ocr ocs oha ohc ohh ohm oho ohr ohs om- oma omb omc omh omm omo omr oms oo- ooa oob ooc ooh oom ooo oor oos or- ora orb orc orh orm oro orr ors os- osa osb osc osh osm oso osr oss ra- raa rab rac rah ram rao rar ras rba rbb rbc rbh rbm rbo rbr rbs rca rcb rcc rch rcm rco rcr rcs rh- rha rhb rhc rhh rhm rho rhr rhs rma rmb rmc rmh rmm rmo rmr rms roa rob roc roh rom roo ror ros rra rrb rrc rrh rrm rrr rrs rsa rsb rsc rsh rsm rso rsr rss saa sab sac sah sam sao sar sas sba sbb sbc sbh sbm sbo sbr sbs sca scb scc sch scm sco scr scs sh- sha shb shc shh shm sho shr shs sma smb smc smh smm smo smr sms soa sob soc soh som soo sor sos sr- sra srb src srh srm sro srr srs ss- ssa ssb ssc ssh ssm sso ssr sss

a-ha aaaa aaab aaac aaah aaam aaar aaas aaba aabb aabc aabh aabm aaca aacb aacc aach aacm aaco aacr aacs aaha aahs aama aamb aamc aamo aamr aams aaoo aara aarc aarm aaro aars aasa aasc aasm aass abaa abab abac abam abar abas abb- abba abbb abbo abbr abbs abca abcb abcc abch abcr abcs abha abhm abho abhr abhs abma abmb abmc abms aboa abob aboh aboo abor abos abra abrc abro abrs abs- absa abss acaa acab acac acar acas acba acca accc acch accm acco accs acha achh acho achr achs acma acmc acmh acms acoa acoh acom acor acos acr- acra acrc acrm acro acrr acrs acsa acsc acsm acss ahab ahac ahah aham ahar ahas ahha ahhs ahmc ahms ahoa ahom ahor ahra ahrc ahrr ahrs ahsa ahso ahss amaa amac amah amam amar amas amb- amba ambo ambr ambs amca amcc amco amcs amhs amm- amma ammo amob amoc amoo amor amos amra amrc amro amsa amsc amso amss aoah aoba aoca aocs aoma aora aorb aors aoss arab arac arah aram arar aras arba arbh arbs arc- arca arch arcm arco arcs arh- arhs arma armc armh armm armo arms aroa arob arom aroo aror aros arr- arra arrc arrh arro arrr arrs ars- arsa arsc arso asaa asab asac asah asam asao asar asas asba asbm asbo asc- asca ascb ascc asch asco ascr asha ashs asma asmm asmr asms asob asoc asom asor asos asra asrc asrm asro asrs assa assc assh asso assr asss baaa baah baam baar baas baba babb babm babo babr babs bac- baca bacc bach baco bacs baha baho bahr bahs bama bamb bamc bamm bams baoh baos bar- bara barb barc barh barm baro barr bars basa basc bash baso bass bbas bbbb bbbs bbch bbcm bbhs bbrc bcaa bcam bcar bcas bcbc bcbs bcca bccc bccm bccs bchs bcma bcms bcor bcos bcra bcrs bcsa bcsc bcsm bcss bhao bhar bhca bhcc bhhs bhms bhor bhra bmaa bmhs bmoc boab boac boar boas boba bobb bobo bobs boca boch bocm boco bocs boha bohm boho bohr bohs boma bomb boms boob booc booh boom boor boos bor- bora borh borm boro borr bors bosa bosc bosh bosm boso boss brab brac brah bram brao bras brca brcb brhs brmc broa brob broc broh brom broo bror bros brrm brrr brrs brsb brsr bsaa bsac bsam bsas bscs bshs bsms bsos bsra bsrm bssc bssm c-bo caaa caab caac caah caam caas caba cabo cabs cac- caca cacc cach cacm caco cacr caha cahs cama camb camc camh camm camo cams caor caos cara carb carc carm caro carr cars casa casb casc cash casm caso casr cass cbac cbar cbbc cbbs cbca cbcc cbcm cbcr cbcs cbha cbhs cbms cbrh