-th a-a a-b a-c a-t aaa aab aac aah aao aar aas aat ab- aba abb abc abh abo abr abs abt ac- aca acb acc ach aco acr acs act aha ahb ahc ahh aho ahr ahs aht aoa aob aoc aoh aoo aor aos aot ar- ara arb arc arh aro arr ars art as- asa asb asc ash aso asr ass ast at- ata atb atc ath ato atr ats att baa bab bac bah bao bar bas bat bba bbb bbc bbh bbo bbr bbs bbt bca bcb bcc bch bco bcr bcs bct bha bhb bhc bhh bho bhr bhs bht boa bob boc boh boo bor bos bot bra brb brh bro brr brs brt bsa bsb bsc bsh bso bsr bss bst bta btb btc bth bto btr bts btt c-- caa cab cac cah cao car cas cat cba cbb cbc cbh cbo cbr cbs cbt cca ccb ccc cch cco ccr ccs cct ch- cha chb chc chh cho chr chs cht co- coa cob coc coh coo cor cos cot cra crb crc crh cro crr crs crt csa csb csc csh cso csr css cst cta ctb ctc cth cto ctr cts ctt haa hab hac hah hao har has hat hba hbb hbc hbh hbo hbr hbs hbt hca hcb hcc hch hco hcr hcs hct hha hhb hhc hhh hho hhr hhs hht hoa hob hoc hoh hoo hor hos hot hr- hra hrb hrc hrh hro hrr hrs hrt hsa hsb hsc hsh hsr hss hst hta htb htc hth hto htr hts htt oaa oab oac oah oao oar oas oat ob- oba obb obc obh obo obr obs obt oc- oca ocb occ och oco ocr ocs oct oha ohc ohh oho ohr ohs oht oo- ooa oob ooc ooh ooo oor oos oot or- ora orb orc orh oro orr ors ort os- osa osb osc osh oso osr oss ost ot- ota otb otc oth oto otr ots ott ra- raa rab rac rah rao rar ras rat rba rbb rbc rbh rbo rbr rbs rbt rca rcb rcc rch rco rcr rcs rct rh- rha rhb rhc rhh rho rhr rhs rht roa rob roc roh roo ror ros rot rra rrb rrc rrh rrr rrs rrt rsa rsb rsc rsh rso rsr rss rst rta rtb rtc rto rtr rts rtt saa sab sac sah sao sar sas sat sba sbb sbc sbh sbo sbr sbs sbt sca scb scc sch sco scr scs sct sh- sha shb shc shh sho shr shs sht soa sob soc soh soo sor sos sot sr- sra srb src srh sro srr srs srt ss- ssa ssb ssc ssh sso ssr sss sst sta stb stc sth sto str sts stt taa tab tac tah tao tar tas tat tba tbb tbc tbh tbo tbr tbs tbt tca tcb tcc tch tco tcr tcs tct th- tha thb thc thh tho thr ths tht to- toa tob toc toh too tor tos tot tra trb trc trh tro trr trs trt tsa tsb tsc tsh tso tsr tss tst tta ttb ttc tth tto ttr tts ttt

a-ha aaaa aaab aaac aaah aaar aaas aaba aabb aabc aabh aabt aaca aacb aacc aach aaco aacr aacs aact aaha aahs aaoo aara aarc aaro aars aart aasa aasc aass aast aata aatc aatt abaa abab abac abar abas abat abb- abba abbb abbo abbr abbs abbt abca abcb abcc abch abcr abcs abct abha abho abhr abhs aboa abob aboh aboo abor abos abot abra abrc abro abrs abs- absa abss abta abts ac-t acaa acab acac acar acas acat acba acca accc acch acco accs acct acha achh acho achr achs acht acoa acoh acor acos acot acr- acra acrc acro acrr acrs acsa acsc acss acst acta actc acth acto acts actt ahab ahac ahah ahar ahas ahat ahha ahhs ahoa ahor ahot ahra ahrc ahrr ahrs ahsa ahso ahss ahta ahto ahts aoah aoba aoca aocs aora aorb aors aort aoss aotc arab arac arah arar aras arat arba arbh arbs arc- arca arch arco arcs arct arh- arhs aroa arob aroo aror aros arr- arra arrc arrh arro arrr arrs arrt ars- arsa arsc arso arst arta artc arth arto artr arts asaa asab asac asah asao asar asas asat asba asbo asc- asca ascb ascc asch asco ascr asct asha ashs asht asob asoc asor asos asot asra asrc asro asrs assa assc assh asso assr asss asst asta astb astc asto astr asts at-t ataa atab atac atar atas atat atbs atca atcc atch atco atcr atcs atha atho aths atob atoc ator atos atot atra atrc atro atsb atsc atst atta atto attr atts baaa baah baar baas baat baba babb babo babr babs bac- baca bacc bach baco bacs bact baha baho bahr bahs baht baoh baos bar- bara barb barc barh baro barr bars bart basa basc bash baso bass bast bata batc bath bato bats batt bbas bbbb bbbs bbch bbhs bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bccs bchs bcor bcos bcra bcrs bcsa bcsc bcss bctc bcts bhao bhar bhat bhca bhcc bhhs bhor bhot bhra bhrt boab boac boar boas boat boba bobb bobo bobs boca boch boco bocs boha boho bohr bohs boht boob booc booh boor boos boot bor- bora borh boro borr bors bort bosa bosc bosh boso boss bost bota botb both boto bots bott brab brac brah brao bras brat brca brcb brhs broa brob broc broh broo bror bros brot brrr brrs brsb brsr brst brtc bsaa bsac bsas bsat bscs bshs bsos bsra bssc bsts btaa btcc btcs bths btob btor btrc btrt btss bttb c-bo caaa caab caac caah caas caat caba cabo cabs cac- caca cacc cach caco cacr caha cahs caht caor caos cara carb carc caro carr cars cart casa casb casc cash caso casr cass cast cat-