a-a a-b a-c a-t aaa aab aac aae aak aas aat aax ab- aba abb abc abe abk abs abt abx ac- aca acb acc ace ack acs act acx aea aeb aec aee aek aes aet aex aka akb akc ake akk aks as- asa asb asc ase ask ass ast asx at- ata atb atc ate ats att atx ax- axa axe axk axs axt axx baa bab bac bae bak bas bat bax bba bbb bbc bbe bbk bbs bbt bbx bca bcb bcc bce bck bcs bct bcx be- bea beb bec bee bek bes bet bex bka bkb bkc bke bkk bks bkt bkx bsa bsb bsc bse bsk bss bst bsx bta btb btc bte btk bts btt btx bxb bxx c-- caa cab cac cae cak cas cat cax cba cbb cbc cbe cbk cbs cbt cbx cca ccb ccc cce cck ccs cct ccx ce- cea ceb cec cee cek ces cet cex cka ckb ckc cks ckt ckx csa csb csc cse csk css cst csx cta ctb ctc cte ctk cts ctt ctx cxc cxk cxs cxt cxx eaa eab eac eae eak eas eat eax eba ebb ebc ebe ebk ebs ebt ebx ec- eca ecb ecc ece eck ecs ect ecx eea eeb eec eee eek ees eet eex eka ekb ekc eke eks ekt es- esa esb esc ese esk ess est esx eta etb etc ete etk ets ett etx ex- exa exc exe exs ext exx k-t ka- kaa kab kac kae kak kas kat kax kba kbb kbc kbe kbk kbs kbx kca kcb kcc kce kck kcs kct kcx ke- kea keb kec kee kek kes ket kex 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 sax sba sbb sbc sbe sbk sbs sbt sbx sca scb scc sce sck scs sct scx se- sea seb sec see sek ses set sex sk- ska skb skc ske skk sks skt skx ss- ssa ssb ssc sse ssk sss sst ssx sta stb stc ste stk sts stt stx sxc sxs sxt t-x taa tab tac tae tak tas tat tax tba tbb tbc tbe tbk tbs tbt tca tcb tcc tce tck tcs tct tcx te- tea teb tec tee tek tes tet tex tka tkb tkc tke tkk tks tkt tsa tsb tsc tse tsk tss tst tsx tta ttb ttc tte ttk tts ttt ttx txe txk txs txt xaa xac xak xas xat xbc xbe xbx xcb xcx xee xes xet xex xkb xke xks xsa xsb xsc xss xst xtc xts xtx xxx

-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 abax 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 aetx akaa akae akas akca akee akes akka aksa akst akte asaa asab asac asae asak asas asat asba asc- asca ascb ascc asce asct ascx asea asec asee asek ases aset aska aske asks askt assa assc asse assk asss asst asta astb astc aste asts at-t at-x ataa atab atac atae atak atas atat atax atbs atca atcc atck atcs atea atec atee ates atex atka atkt atsb atsc atse atst atta atte atts axat axce axes axse ba-x 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 baxt 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 btcx btec btek btex btss bttb caaa caab caac caas caat caba cabe cabs cac- caca cacc cace cack caec caes caex caka cake casa casb casc case cask cass cast cat- cata catb catc cate cats catt caxa cbac cbat cbax cbbc cbbs cbca cbcc cbce cbcs cbct cbea cbec cbee cbet cbka cbsa cbsc cbse cbta cbtc cbxa 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 cexe ckac ckat ckbc ckbe ckbx ckck ckcs ckcx 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 cstx csxt ctab ctae ctba ctbs ctca ctec ctsa ctsc ctss ctta ctts cxxx 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 eext 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 exa- exec exes exta exte exts kaaa kaab kaak kaas kaat kaba kabb