a-a a-b a-c a-t aaa aab aac aae aaf aas aat ab- aba abb abc abe abf abs abt ac- aca acb acc ace acf acs act aea aeb aec aee aef aes aet af- afa afb afc afe aff afs aft as- asa asb asc ase asf ass ast at- ata atb atc ate atf ats att baa bab bac bae baf bas bat bba bbb bbc bbe bbf bbs bbt bca bcb bcc bce bcf bcs bct be- bea beb bec bee bef bes bet bfa bfb bfc bfe bff bfs bft bsa bsb bsc bse bsf bss bst bta btb btc bte btf bts btt c-- caa cab cac cae caf cas cat cba cbb cbc cbe cbf cbs cbt cca ccb ccc cce ccf ccs cct ce- cea ceb cec cee cef ces cet cfa cfb cfc cfe cff cfs cft csa csb csc cse csf css cst cta ctb ctc cte ctf cts ctt eaa eab eac eae eaf eas eat eba ebb ebc ebe ebf ebs ebt ec- eca ecb ecc ece ecf ecs ect eea eeb eec eee eef ees eet ef- efa efb efc efe eff efs eft es- esa esb esc ese esf ess est eta etb etc ete etf ets ett faa fab fac fae faf fas fat fba fbb fbc fbe fbf fbs fbt fca fcb fcc fce fcf fcs fct fea feb fec fee fef fes fet ffa ffc ffe fff ffs fft fsa fsb fsc fse fsf fss fst fta ftb ftc fte ftf fts ftt saa sab sac sae saf sas sat sba sbb sbc sbe sbf sbs sbt sca scb scc sce scf scs sct se- sea seb sec see sef ses set sfa sfb sfc sfe sff sfs sft ss- ssa ssb ssc sse ssf sss sst sta stb stc ste stf sts stt taa tab tac tae taf tas tat tba tbb tbc tbe tbf tbs tbt tca tcb tcc tce tcf tcs tct te- tea teb tec tee tef tes tet tfa tfb tfc tfe tff tfs tft tsa tsb tsc tse tsf tss tst tta ttb ttc tte ttf tts ttt

-ase a-be aaaa aaab aaac aaae aaaf aaas aaba aabb aabc aabt aaca aacb aacc aace aacf aacs aact aaea aaec aaes aafa aafb aafc aaff aasa aasc aase aasf aass aast aata aatc aatf aatt abaa abab abac abae abaf abas abat abb- abba abbb abbe abbs abbt abca abcb abcc abcf abcs abct abec abee abes abet abff abs- absa abse absf abss abta abts ac-t acaa acab acac acae acas acat acba acca accc acce accf accs acct ace- acea acec aces acet acfc acfe acfs acft acsa acsc acse acss acst acta actc acte actf acts actt aeac aeaf aeas aebs aecb aect aesc aess aest aeta aetc aetf aett afaa afat afbs afca afcb afcc afcs afee afes afet affa affc affs afft afsa afsb afsc afst afta aftc afte afts asaa asab asac asae asaf asas asat asba asc- asca ascb ascc asce asct asea asec asee ases aset asfa assa assc asse asss asst asta astb astc aste asts at-t ataa atab atac atae atas atat atbs atca atcc atcf atcs atea atec atee atef ates atfb atfc atfe atfs atsb atsc atse atst atta atte atts baaa baaf baas baat baba babb babe babs bac- baca bacc bace bacs bact baes bafc baff baft basa basc base basf bass bast bata batc bate batf bats batt bbas bbbb bbbs bbeb bbet bbfc bcaa bcas bcat bcbc bcbs bcca bccc bccs bcec bces bcet bcfc bcsa bcsc bcss bctc bcts beaf beas beat beba bebb bebe beca becs beeb beef bees beet befa befe beff beft bes- besa bese bess best beta betc bete bets bett bfas bfca bfcs bffs bfta bfts bftt bsaa bsac bsas bsat bscs bsea bseb bsec bsee bses bset bsfa bsfc bsff bsfs bssc bsse bsts btaa btaf btcc btcs btec btfc btss bttb caaa caab caac caaf caas caat caba cabe cabf cabs cac- caca cacc cace caec caes cafa cafb cafc cafe caff cafs casa casb casc case cass cast cat- cata catb catc cate catf cats catt cbac cbat cbbc cbbs cbca cbcc cbce cbcs cbct cbea cbec cbee cbef cbet cbfb cbfc cbsa cbsc cbse cbta cbtc cbtf ccaa ccab ccac ccaf ccas ccat ccba ccbc ccca cccb cccc cccf cccs ccee ccfa ccfc ccff ccsa ccsf ccss ccst cctb cctc cctt ceac ceas ceat ceba cebs cec- ceca cece cecs cect ceeb ceec cees cef- cefa cefc cesa cesc cese cess cest cet- ceta cete cets cfaa cfab cfac cfae cfbc cfbs cfbt cfca cfcb cfcf cfcs cffb cfsa cfse cfta cftc cfte csaa csab csac csas csat csbf cscb cscc csce cscf cscs csea csec csee cset csfc cssa csse csta cstc csts ctab ctae ctba ctbs ctca ctcf ctec ctfc ctfs ctsa ctsc ctss ctta ctts eaaf eaba eaca eacc eaec eafb easa ease east eata eate eats ebac ebba ebbc ebbs ebcc ebes ebfc ebsa ecaa ecac ecat ecbc ecbe ecca eccb eccc ecce ecct ecef eces ecfa ecfc ecfs ecsa ecsc ecse ecss ect- ecta ectc ectf ects eeca eecs eeea eeee eees eefa eefe eese eeta eetc eete eets efab efas efca efes efet effa effs efsa eft- efta efts esab esac esas esat esba esbs esca escb esce escs esea esee eses eset esfs essa esse esst esta estc este ests etas etat etbc etcc etcs etec etee etes etfa etfb etfc etfe etta ette faaa faac faas faba fabe fabs faca facc face facs fact faeb faes fafa fafc fafe faff fasa fasc fase fass fast fata fatc fate fatf fats fatt fcab fcas fcat fcba fcbs fcca fccf fces fcsc fcst feaf feas feat feba febs fece fect feeb fees feet fefc fefe feff fesa fese fess fest feta fete fets fett ffcc ffee ffff ffsa ffss fftf fsas fscb fscc fsec fssa fssc fssf