a-a a-b a-t aaa aab aad aae aaf aas aat ab- aba abb abd abe abf abs abt ad- ada adb add ade adf ads adt aea aeb aed aee aef aes aet af- afa afb afd afe aff afs aft as- asa asb asd ase asf ass ast at- ata atb atd ate atf ats att baa bab bad bae baf bas bat bba bbb bbd bbe bbf bbs bbt bda bdb bdd bde bdf bds bdt be- bea beb bed bee bef bes bet bfa bfb bfd bfe bff bfs bft bsa bsb bsd bse bsf bss bst bta btb btd bte btf bts btt daa dab dad dae daf das dat dba dbb dbd dbe dbf dbs dbt dda ddb ddd dde ddf dds ddt de- dea deb ded dee def des det dfa dfb dfd dfe dff dfs dft dsa dsb dsd dse dsf dss dst dta dtb dtd dte dtf dts dtt eaa eab ead eae eaf eas eat eba ebb ebd ebe ebf ebs ebt ed- eda edb edd ede edf eds edt eea eeb eed eee eef ees eet ef- efa efb efd efe eff efs eft es- esa esb esd ese esf ess est eta etb etd ete etf ets ett faa fab fad fae faf fas fat fba fbb fbd fbe fbf fbs fbt fda fdb fdd fde fdf fds fdt fea feb fed fee fef fes fet ffa ffd ffe fff ffs fft fsa fsb fsd fse fsf fss fst fta ftb ftd fte ftf fts ftt saa sab sad sae saf sas sat sba sbb sbd sbe sbf sbs sbt sda sdb sdd sde sdf sds sdt se- sea seb sed see sef ses set sfa sfb sfd sfe sff sfs sft ss- ssa ssb ssd sse ssf sss sst sta stb std ste stf sts stt taa tab tad tae taf tas tat tba tbb tbd tbe tbf tbs tbt tda tdb tdd tde tdf tds tdt te- tea teb ted tee tef tes tet tfa tfb tfd tfe tff tfs tft tsa tsb tsd tse tsf tss tst tta ttb ttd tte ttf tts ttt

-ase a-be aaaa aaab aaad aaae aaaf aaas aaba aabb aabd aabt aada aade aads aadt aaea aaes aafa aafb aafd aaff aasa aasd aase aasf aass aast aata aatf aatt abaa abab abad abae abaf abas abat abb- abba abbb abbe abbs abbt abda abed abee abes abet abff abs- absa absd abse absf abss abta abts adaa adab adad adae adas adat adba adda addd adde adds adea adeb adee ades adet adfa adfs adsa adss adst adta adts aeaf aeas aebs aede aedt aesd aess aest aeta aetf aett afaa afad afat afbs afdb afee afes afet affa affs afft afsa afsb afst afta afte afts asaa asab asad asae asaf asas asat asba asda asde asdf asds asea asee ases aset asfa assa assd asse asss asst asta astb aste asts at-t ataa atab atad atae atas atat atbs atdt atea ated atee atef ates atfb atfe atfs atsb atse atst atta atte atts baaa baad baaf baas baat baba babb babe babs bada badb badd bade bads baed baes baff baft basa base basf bass bast bata bate batf bats batt bbad bbas bbbb bbbs bbdd bbeb bbet bdes bdsd bead beaf beas beat beba bebb bebe beda bede beds beeb beed beef bees beet befa befe beff beft bes- besa bese bess best beta bete bets bett bfas bffs bfta bfts bftt bsaa bsas bsat bsbd bsea bseb bsed bsee bses bset bsfa bsff bsfs bssd bsse bsts btaa btaf btdt btss bttb daab daad daae daas daba dabb dabs dabt dada dade dads daeb dafa dafe daff dafs daft dasa dasb dasd dase dass dast data date dats datt dbas dbfs dbsa dbss dbtt dddd ddes ddss ddts dead deae deaf deas deba debe debs debt deda dedd dede deeb deed deef dees deet defe deff defs deft des- desa dese dess dest deta dete dets dfaf dfas dfds dfdt dffa dfts dsba dsda dsea dsfa dssa dsst dsts dtaa dted dtss eaaf eaba eada eadb eadd eads eafb easa ease east eata eate eats ebba ebbs ebed ebes ebsa edad edas edda edde edds ede- edea edes edfa edsa edss edta edts eede eeea eeee eees eefa eefe eese eeta eete eets efab efas efda efes efet effa effs efsa eft- efta efts esab esad esas esat esba esbs esda esds esea esee eses eset esfs essa esse esst esta estd este ests etas etat etds etee etes etfa etfb etfe etta ette faaa faad faas faba fabd fabe fabs fada fadd fade fads faeb faes fafa fafe faff fasa fasd fase fass fast fata fate fatf fats fatt fbsd fdst fead feaf feas feat feba febs feda fede feds feeb feed fees feet fefe feff fesa fese fess fest feta fete fets fett ffee ffff ffsa ffss fftf fsas fssa fssf fsta ftea ftsa ftse saab saad saae saaf saas saat saba sabb sabe sabs sada sadb sadd sade sads sadt saeb saes safa safb safe saff saft sasa sasd sase sasf sass sast sata satb satd sate sats satt sbaa sbas sbbs sbds sbef sbsa sbsd sbse sbst sdae sdba sdds sdef sdes sdet sdsf sdss se-d se-e se-f se-s se-t seaa seab sead seaf seas seat seba sebe sebs sebt seda sede seds seea seeb seed seef sees seet sefa seff seft sesa sese sess sest set- seta sete setf sets sett sfas sfba sfss sfts ssaa ssab ssas ssat ssdd ssdf ssee sses sset sssa sssb sssf ssss ssta sstb sstd ssts stab stad stae stas stat stbd stbs stds stea sted stee stef stes stet stsf stss sttd taa- taaf taas taat taba tabb tabe tabs tada tade tads taes tafa tafe taff taft tasa tasb tase tass tast tata tatb tate tats tatt tbaf tbas tbbs tbst tbta tddb tdes tdff tdse tdss tead teas teat teba teda