-th a-a a-b a-c a-t aaa aab aac aah aam aao aar aat ab- aba abb abc abh abm abo abr abt ac- aca acb acc ach acm aco acr act aha ahb ahc ahh ahm aho ahr aht ama amb amc amh amm amo amr amt aoa aob aoc aoh aom aoo aor aot ar- ara arb arc arh arm aro arr art at- ata atb atc ath atm ato atr att baa bab bac bah bam bao bar bat bba bbb bbc bbh bbm bbo bbr bbt bca bcb bcc bch bcm bco bcr bct bha bhb bhc bhh bhm bho bhr bht bma bmb bmc bmh bmm bmo bmr bmt boa bob boc boh bom boo bor bot bra brb brh brm bro brr brt bta btb btc bth btm bto btr btt c-- caa cab cac cah cam cao car cat cba cbb cbc cbh cbm cbo cbr cbt cca ccb ccc cch ccm cco ccr cct ch- cha chb chc chh chm cho chr cht cma cmb cmc cmh cmm cmo cmr cmt co- coa cob coc coh com coo cor cot cra crb crc crh crm cro crr crt cta ctb ctc cth ctm cto ctr ctt haa hab hac hah ham hao har hat hba hbb hbc hbh hbm hbo hbr hbt hca hcb hcc hch hcm hco hcr hct hha hhb hhc hhh hhm hho hhr hht hma hmb hmc hmh hmm hmo hmr hmt hoa hob hoc hoh hom hoo hor hot hr- hra hrb hrc hrh hrm hro hrr hrt hta htb htc hth htm hto htr htt m-o m-r maa mab mac mah mam mao mar mat mba mbb mbc mbh mbm mbo mbr mbt mc- mca mcb mcc mch mcm mco mcr mct mha mhc mhh mhm mho mhr mht mma mmb mmc mmh mmm mmo mmr mmt moa mob moc moh mom moo mor mot mra mrb mrc mrh mrm mro mrr mrt mta mtb mtc mth mtm mto mtr mtt oaa oab oac oah oam oao oar oat ob- oba obb obc obh obm obo obr obt oc- oca ocb occ och ocm oco ocr oct oha ohc ohh ohm oho ohr oht om- oma omb omc omh omm omo omr omt oo- ooa oob ooc ooh oom ooo oor oot or- ora orb orc orh orm oro orr ort ot- ota otb otc oth otm oto otr ott ra- raa rab rac rah ram rao rar rat rba rbb rbc rbh rbm rbo rbr rbt rca rcb rcc rch rcm rco rcr rct rh- rha rhb rhc rhh rhm rho rhr rht rma rmb rmc rmh rmm rmo rmr rmt roa rob roc roh rom roo ror rot rra rrb rrc rrh rrm rrr rrt rta rtb rtc rtm rto rtr rtt taa tab tac tah tam tao tar tat tba tbb tbc tbh tbm tbo tbr tbt tca tcb tcc tch tcm tco tcr tct th- tha thb thc thh thm tho thr tht tma tmb tmc tmh tmm tmo tmr tmt to- toa tob toc toh tom too tor tot tra trb trc trh trm tro trr trt tta ttb ttc tth ttm tto ttr ttt

a-ha aaaa aaab aaac aaah aaam aaar aaba aabb aabc aabh aabm aabt aaca aacb aacc aach aacm aaco aacr aact aaha aama aamb aamc aamo aamr aaoo aara aarc aarm aaro aart aata aatc aatt abaa abab abac abam abar abat abb- abba abbb abbo abbr abbt abca abcb abcc abch abcr abct abha abhm abho abhr abma abmb abmc abmt aboa abob aboh aboo abor abot abra abrc abro abta ac-t acaa acab acac acar acat acba acca accc acch accm acco acct acha achh acho achr acht acma acmc acmh acoa acoh acom acor acot acr- acra acrc acrm acro acrr acta actc acth acto actt ahab ahac ahah aham ahar ahat ahha ahmc ahoa ahom ahor ahot ahra ahrc ahrr ahta ahto amaa amac amah amam amar amat amb- amba ambo ambr amca amcc amco amm- amma ammo amob amoc amoo amor amot amra amrc amro amta amtc amto aoah aoba aoca aoma aora aorb aort aotc arab arac arah aram arar arat arba arbh arc- arca arch arcm arco arct arh- arma armc armh armm armo armt aroa arob arom aroo aror arr- arra arrc arrh arro arrr arrt arta artc arth arto artr at-t ataa atab atac atar atat atca atcc atch atco atcr atha atho atm- atma atmo atob atoc atom ator atot atra atrc atrm atro atta atto attr baaa baah baam baar baat baba babb babm babo babr bac- baca bacc bach baco bact baha baho bahr baht bama bamb bamc bamm baoh bar- bara barb barc barh barm baro barr bart bata batc bath bato batt bbbb bbch bbcm bbrc bcaa bcam bcar bcat bcbc bcca bccc bccm bcma bcor bcra bctc bhao bhar bhat bhca bhcc bhor bhot bhra bhrt bmaa bmoc bmtc boab boac boar boat boba bobb bobo boca boch bocm boco boha bohm boho bohr boht boma bomb bomt boob booc booh boom boor boot bor- bora borh borm boro borr bort bota botb both boto bott brab brac brah bram brao brat brca brcb brmc broa brob broc broh brom broo bror brot brrm brrr brtc btaa btcc btob btor btrc btrt bttb c-bo caaa caab caac caah caam caat caba cabo cac- caca cacc cach cacm caco cacr caha caht cama camb camc camh camm camo camt caor cara carb carc carm caro carr cart cat- cata catb catc cath catm cato catt cbac cbar cbat cbbc cbca cbcc cbcm cbcr cbct cbha cbot cbrh cbrm cbrt cbta cbtc ccaa ccab ccac ccam ccar ccat ccba ccbc ccca cccb cccc cccm ccha cchr ccma ccmb ccmc ccmm ccob ccoc ccom ccra ccrc ccrt cctb cctc cctt chaa chab chac chah cham chao char chat chca chch chcm chha chmb chmc chmo chmt choc choh choo chor chra chrb chrc chro chrr