a-a a-b a-t aaa aab aae aaf aak aas aat ab- aba abb abe abf abk abs abt aea aeb aee aef aek aes aet af- afa afb afe aff afk afs aft aka akb ake akk aks as- asa asb ase asf ask ass ast at- ata atb ate atf ats att baa bab bae baf bak bas bat bba bbb bbe bbf bbk bbs bbt be- bea beb bee bef bek bes bet bfa bfb bfe bff bfs bft bka bkb bke bkf bkk bks bkt bsa bsb bse bsf bsk bss bst bta btb bte btf btk bts btt eaa eab eae eaf eak eas eat eba ebb ebe ebf ebk ebs ebt eea eeb eee eef eek ees eet ef- efa efb efe eff efs eft eka ekb eke ekf eks ekt es- esa esb ese esf esk ess est eta etb ete etf etk ets ett faa fab fae faf fak fas fat fba fbb fbe fbf fbk fbs fbt fea feb fee fef fek fes fet ffa ffe fff ffk ffs fft fka fkb fkf fkk fkt fsa fsb fse fsf fsk fss fst fta ftb fte ftf ftk fts ftt k-t ka- kaa kab kae kaf kak kas kat kba kbb kbe kbf kbk kbs ke- kea keb kee kef kek kes ket kfa kff kfs kkb kke kkk kks kkt ksa ksb kse ksf ksk kss kst kta ktb kte ktf ktk kts ktt saa sab sae saf sak sas sat sba sbb sbe sbf sbk sbs sbt se- sea seb see sef sek ses set sfa sfb sfe sff sfk sfs sft sk- ska skb ske skf skk sks skt ss- ssa ssb sse ssf ssk sss sst sta stb ste stf stk sts stt taa tab tae taf tak tas tat tba tbb tbe tbf tbk tbs tbt te- tea teb tee tef tek tes tet tfa tfb tfe tff tfk tfs tft tka tkb tke tkk tks tkt tsa tsb tse tsf tsk tss tst tta ttb tte ttf ttk tts ttt

-ase a-ak a-be aaaa aaab aaae aaaf aaas aaba aabb aabt aaea aaes aafa aafb aaff aaka aake aasa aase aasf aass aast aata aatf aatk aatt abaa abab abae abaf abak abas abat abb- abba abbb abbe abbs abbt abee abes abet abff abs- absa abse absf abss abta abts aeaf aeas aebs aeka aess aest aeta aetf aett afaa afak afat afbs afee afek afes afet affa affs afft afka afsa afsb afst afta afte afts akaa akae akas akee akes akka aksa akst akte asaa asab asae asaf asak asas asat asba asea asee asek ases aset asfa aska aske asks askt assa asse assk asss asst asta astb aste asts at-t ataa atab atae atak atas atat atbs atea atee atef ates atfb atfe atfs atka atkt atsb atse atst atta atte atts baaa baaf baak baas baat baba babb babe babs baek baes baff baft bak- baka bake baks bakt basa base basf bask bass bast bata bate batf bats batt bbas bbbb bbbs bbeb bbet beaf beak beas beat beba bebb bebe beeb beef beek bees beet befa befe beff beft beka beke beks bes- besa bese besk bess best beta bete bets bett bfas bffs bfta bfts bftt bsaa bsas bsat bsea bseb bsee bses bset bsfa bsff bsfs bskt bsse bsts btaa btaf btek btss bttb eaaf eaba eafb easa ease east eata eate eats ebba ebbs ebes ebsa eeea eeee eees eefa eefe eeka eeke eeks eese eesk eeta eete eets efab efas efes efet effa effs efke efsa eft- efta efts eka- ekab ekeb ekek ekes eket ekka ekta esab esas esat esba esbs esea esee esek eses eset esfs eska eske esks essa esse esst esta este ests etak etas etat etee etes etfa etfb etfe etka etta ette f--k faaa faas faba fabe fabs faeb faes fafa fafe faff fake fakt fasa fase fass fast fata fate fatf fats fatt feaf feak feas feat feba febs feeb feek fees feet fefe feff feke fesa fese fess fest feta fete fets fett ffee ffff ffsa ffss fftf fkab fsas fssa fssf fsta ftea ftsa ftse kaaa kaab kaaf kaak kaas kaat kaba kabb kabe kabf kaes kaet kafa kafe kaff kafs kaka kake kakk kaks kakt kas- kasa kasb kase kasf kask kass kast kat- kata katb kate katf katk kats katt kbaa kbab kbae kbak kbas kbat kbba kbbb kbbe kbbf kbbk kbbs kbbt kbeb kbee kbef kbek kbes kbet kbfb kbff kbfk kbfs kbft kbkb kbkf kbkk kbsa kbsb kbsk kbss kbst kbta kbtb kbte kbtf kbtk kbts kbtt kea- keak keas keat keba kebb kebe kebt keef keek kees keet kefa kefb keff kefs keft keka kekb keke keks kesa kesb kesk kess kest ket- keta kete ketf ketk kets kett kfab kfat kfbk kfbt kfeb kffa kffb kfff kffk kfka kfkb kfsa kfse kfsk kfst kfta kfte kftk kftt kkaa kkat kkba kkbb kkbe kkbs kkbt kkea kkfs kkft kkkk kksa kkse kksf kkss kkst kktk kkts ksab ksaf ksak ksas ksat ksba ksbs ksea ksee ksek kset ksfa ksfb ksfe ksft kska kskb kske kskf kskk ksks kssa ksse ksss ksst ksta kstb kste kstk ksts kstt ktaa ktae ktak ktas ktat ktba ktbb ktbt ktea ktee ktek ktfb ktfs ktkb ktke ktkk ktks ktkt ktsa ktsf ktst kttf kttk ktts kttt saab saae saaf saak saas saat saba sabb sabe sabs saeb saek saes safa safb safe saff saft saka sakb sake sakk saks sasa sase sasf sask sass sast sata satb sate sats satt sbaa sbas sbbs sbef sbsa sbse sbst sbtk se-e se-f se-k se-s se-t seaa seab seaf seak seas seat seba sebe sebs sebt seea seeb seef seek sees seet sefa seff seft seka seke sekk sekt sesa sese sess sest set- seta sete setf sets sett sfas sfba sfss sfts skab skaf skat skee skes sket skss ssaa ssab ssas ssat ssee sses sset sssa