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

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 abax 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 abox 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 amax amb- amba ambo ambr ambx 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 arax 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 artx at-t at-x ataa atab atac atar atat atax atca atcc atch atco atcr atha atho atm- atma atmo atob atoc atom ator atot atra atrc atrm atro atrx atta atto attr axar axat axo- axoa axto axxo ba-x 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 barx bata batc bath bato batt baxt bbbb bbch bbcm bbox 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 boox bor- bora