a-a a-b a-c a-t aaa aab aac aae aak aas aat ab- aba abb abc abe abk abs abt ac- aca acb acc ace ack acs act aea aeb aec aee aek aes aet aka akb akc ake akk aks as- asa asb asc ase ask ass ast at- ata atb atc ate ats att baa bab bac bae bak bas bat bba bbb bbc bbe bbk bbs bbt bca bcb bcc bce bck bcs bct be- bea beb bec bee bek bes bet bka bkb bkc bke bkk bks bkt bsa bsb bsc bse bsk bss bst bta btb btc bte btk bts btt c-- caa cab cac cae cak cas cat cba cbb cbc cbe cbk cbs cbt cca ccb ccc cce cck ccs cct ce- cea ceb cec cee cek ces cet cka ckb ckc cks ckt csa csb csc cse csk css cst cta ctb ctc cte ctk cts ctt eaa eab eac eae eak eas eat eba ebb ebc ebe ebk ebs ebt ec- eca ecb ecc ece eck ecs ect eea eeb eec eee eek ees eet eka ekb ekc eke eks ekt es- esa esb esc ese esk ess est eta etb etc ete etk ets ett k-t ka- kaa kab kac kae kak kas kat kba kbb kbc kbe kbk kbs kca kcb kcc kce kck kcs kct ke- kea keb kec kee kek kes ket kkb kkc kke kkk kks kkt ksa ksb ksc kse ksk kss kst kta ktb ktc kte ktk kts ktt saa sab sac sae sak sas sat sba sbb sbc sbe sbk sbs sbt sca scb scc sce sck scs sct se- sea seb sec see sek ses set sk- ska skb skc ske skk sks skt ss- ssa ssb ssc sse ssk sss sst sta stb stc ste stk sts stt taa tab tac tae tak tas tat tba tbb tbc tbe tbk tbs tbt tca tcb tcc tce tck tcs tct te- tea teb tec tee tek tes tet tka tkb tkc tke tkk tks tkt tsa tsb tsc tse tsk tss tst tta ttb ttc tte ttk tts ttt

-ase a-ak a-be aaaa aaab aaac aaae aaas aaba aabb aabc aabt aaca aacb aacc aace aack aacs aact aaea aaec aaes aaka aake aasa aasc aase aass aast aata aatc aatk aatt abaa abab abac abae abak abas abat abb- abba abbb abbe abbs abbt abca abcb abcc abcs abct abec abee abes abet abs- absa abse abss abta abts ac-t acaa acab acac acae acas acat acba acca accc acce accs acct ace- acea acec acek aces acet acke acks acsa acsc acse acss acst acta actc acte acts actt aeac aeas aebs aecb aect aeka aesc aess aest aeta aetc aett akaa akae akas akca akee akes akka aksa akst akte asaa asab asac asae asak asas asat asba asc- asca ascb ascc asce asct asea asec asee asek ases aset aska aske asks askt assa assc asse assk asss asst asta astb astc aste asts at-t ataa atab atac atae atak atas atat atbs atca atcc atck atcs atea atec atee ates atka atkt atsb atsc atse atst atta atte atts baaa baak baas baat baba babb babe babs bac- baca bacc bace back bacs bact baek baes bak- baka bake baks bakt basa basc base bask bass bast bata batc bate bats batt bbas bbbb bbbs bbeb bbet bcaa bcas bcat bcbc bcbs bcca bccc bccs bcec bces bcet bcsa bcsc bcss bctc bcts beak beas beat beba bebb bebe beca beck becs beeb beek bees beet beka beke beks bes- besa bese besk bess best beta betc bete bets bett bsaa bsac bsas bsat bscs bsea bseb bsec bsee bses bset bskt bssc bsse bsts btaa btcc btcs btec btek btss bttb caaa caab caac caas caat caba cabe cabs cac- caca cacc cace cack caec caes caka cake casa casb casc case cask cass cast cat- cata catb catc cate cats catt cbac cbat cbbc cbbs cbca cbcc cbce cbcs cbct cbea cbec cbee cbet cbka cbsa cbsc cbse cbta cbtc ccaa ccab ccac ccas ccat ccba ccbc ccca cccb cccc cccs ccee ccsa ccss ccst cctb cctc cctt ceac ceas ceat ceba cebs cec- ceca cece cecs cect ceeb ceec cees ceke cesa cesc cese cess cest cet- ceta cete cets ckac ckat ckbc ckbe ckck ckcs cksa cksb ckst cktb ckts csaa csab csac csak csas csat cscb cscc csce cscs csea csec csee cset cska csks cssa csse csta cstc csts ctab ctae ctba ctbs ctca ctec ctsa ctsc ctss ctta ctts eaba eaca eacc eaec easa ease east eata eate eats ebac ebba ebbc ebbs ebcc ebes ebsa ecaa ecac ecat ecbc ecbe ecca eccb eccc ecce ecct eces ecka ecks ecsa ecsc ecse ecss ect- ecta ectc ects eeca eecs eeea eeee eees eeka eeke eeks eese eesk eeta eetc eete eets eka- ekab ekeb ekek ekes eket ekka ekta esab esac esas esat esba esbs esca escb esce escs esea esee esek eses eset eska eske esks essa esse esst esta estc este ests etak etas etat etbc etcc etcs etec etee etes etka etta ette kaaa kaab kaak kaas kaat kaba kabb kabc kabe kacb kacc kace kacs kact kaes kaet kaka kakc kake kakk kaks kakt kas- kasa kasb kasc kase kask kass kast kat- kata katb katc kate katk kats katt kbaa kbab kbac kbae kbak kbas kbat kbba kbbb kbbc kbbe kbbk kbbs kbbt kbca kbcb kbce kbck kbcs kbct kbeb kbec kbee kbek kbes kbet kbkb kbkk kbsa kbsb kbsk kbss kbst kbta kbtb kbtc kbte kbtk kbts kbtt kcaa kcab kcac kcas kcat kcba kcbc kcbk kcbs kcca kccb kccc kcck kcct kcea kceb kcec kcee kcet kckc kckk kcsa kcsb kcsc kcse kcss kcst kcta kctb kctc kcte kea- keak keas keat keba kebb kebc kebe kebt keca keck keek kees keet keka kekb kekc keke keks kesa kesb kesc kesk kess kest ket-