a-be aaaa aaab aaac aaad aaae aaaf aaal aaba aabb aabc aabd aabl aabt aaca aacb aacc aacd aace aacf aacl aact aada aadc aade aadt aaea aaec aafa aafb aafc aafd aaff aafl aala aalc aald aale aall aata aatc aatf aatt abaa abab abac abad abae abaf abal abat abb- abba abbb abbe abbt abca abcb abcc abcd abcf abcl abct abda abec abed abee abel abet abff abla able abta ac-t acaa acab acac acad acae acat acba acbl acca accc accd acce accf acct acda acdb acdc acde acdf acdt ace- acea acec aced acel acet acfc acfd acfe acfl acft acla aclc acle acta actc acte actf actl actt adaa adab adac adad adae adal adat adba adbc adcc adda addc addd adde addl adea adeb adee adel adet adfa adfc adfl adle adta aeac aeaf aecb aecl aect aede aedt aela aelc aeta aetc aetf aett afaa afad afat afca afcb afcc afdb afdc afdl afee afel afet affa affc afft afla aflc afle afta aftc afte alaa alac alad alae alal alat alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee alef alet alfa alfe all- alla alle alll alta alte at-l at-t ataa atab atac atad atae atal atat atca atcc atcf atcl atdt atea atec ated atee atef atel atfb atfc atfe atla atle atta atte baaa baad baaf baal baat baba babb babe bac- baca bacc bace bact bada badb badd bade baed bael bafc baff baft bala balc bald bale balf ball balt bata batc bate batf batt bbad bbbb bbdd bbeb bbet bbfc bblb bcaa bcat bcbc bcca bccc bccl bcda bcde bcec bcet bcfc bctc bdbc bddc bdle bead beaf beal beat beba bebb bebe beca beda bede bedl beeb beed beef beel beet befa befe beff beft bela beld bele bell belt beta betc bete bett bfca bffl bfta bftt blaa blab blac blad blae blat blbt bldc blea bleb bled blee blet blfc btaa btaf btcc btcl btdt btec btfc btla bttb c-cd caaa caab caac caaf caal caat caba cabe cabf cac- caca cacc cace cada cadc cadd cade caec cafa cafb cafc cafe caff cafl cala calc cald cale calf call calt cat- cata catb catc catd cate catf catt cbac cbal cbat cbbc cbca cbcc cbce cbcl cbct cbdb cbdc cbea cbec cbee cbef cbet cbfb cbfc cblb cblc cbta cbtc cbtf cbtl ccaa ccab ccac ccad ccaf ccat ccba ccbc ccca cccb cccc cccf cccl ccdc ccdf cced ccee ccel ccfa ccfc ccfd ccff ccfl ccla cclc cctb cctc cctl cctt cd-e cdaa cdac cdad cdba cdbf cdda cddb cddl cdec cdef cdfa cdfe ceac cead ceal ceat ceba cec- ceca cece cect ceda cedd cede cedt ceeb ceec ceel cef- cefa cefc cel- cela celc cele celf cell celt cet- ceta cete cfaa cfab cfac cfae cfbc cfbt cfca cfcb cfcf cfcl cfda cffb cfta cftc cfte cftl clab clad claf clat clcd cldc clea clec cled clee clef clet cltb cltc ctab ctae ctal ctba ctca ctcf ctec ctfc ctle ctta daab daad daae daal daba dabb dabt daca dace dact dada dade daeb dafa dafc dafe daff daft dala dale dalf dall dalt data date datt dbcc dbfc dbtt dcbc dcca dccb dccc dccl dcct dcdb dcfc dctc dddd ddlc deac dead deae deaf deal deba debe debt dec- deca decc decd dece decl dect deda dedd dede deeb deed deef deel deet defe deff deft dela deld dele delf dell delt deta dete dfaf dfcc dfdt dffa dlab dlbd dtaa dtac dtcc dted dtfc dtla dtle e-cl e-la eaaf eaba eaca eacc eada eadb eadd eaec eafb eala ealc eald eale eata eate ebac ebal ebba ebbc ebcc ebed ebel ebfc ebla ecaa ecac ecad ecal ecat ecbc ecbe ecca eccb eccc ecce eccl ecct ecdc ecdf ecdl eced ecef ecfa ecfc ecla eclt ect- ecta ectc ectf edac edad edca edda eddc edde ede- edea edel edfa edfl edla edle edta eeca eede eeea eeee eefa eefe eefl eele eeta eetc eete efab efca efda efet effa efla eft- efta el-b elab elac elad elal elat elba elbe elca elcb elce elda elde elea elec eled elee elef elet elfa elfc elfe elft ella elle elta elte etal etat etbc etcc etec etee etel etfa etfb etfc etfe etla etta ette faaa faac faad faba fabd fabe faca facc face fact fada fadd fade faeb fafa fafc fafe faff fala falc fald fale fall falt fata fatc fate fatf fatt fbla fble fcab fcal fcat fcba fcca fccf fcda fdca fdtc fdtl fead feaf feal feat feba fece fect feda fede feeb feed feel feet fefc fefe feff fela feld fele felf fell felt feta fete fett ffcc ffee ffff fftf flab flac flad flae flat flcl flea fled flee flet ft-c ft-l ftcd ftea ftfc ftlb laaa laac laad laal laat laba labe laca lacc lace lacl lact lada ladd lade lael laet lafb lafc lafe laff laft lala lald lale lall lata latc latd late latt lbcc lcac lcad lcat lcbc lcca lccc lcce lcdd lcfc lctl ldcf leaa lead leaf leal leat leba lebd leca lece lect leda lede ledt leea leed leef leel leet lefa lefe leff left lela lele lell leta lete lett lfat lfca lfcc llat llcc lldb lldc llef llet lllc llll ltac ltae ltbf ltbl ltcc ltee ltfc lttc taa- taaf taal taat taba tabb tabc tabe tabl taca tacc tace tacl tact tada tade taec tael tafa tafc tafe taff taft tala talc tale tall tata tatb tate tatt tbaf tbca tbcb tbcc tbcd tbce tbta tcad tcca tccc tcdd tcfc tctc tdac tdal tddb tdff teac tead teal teat teba teca tecl tect teda tedd tede teec teed teef teel teet tefc teff tefl teft tel- tela telc teld tele tell telt teta tete tett tfae tfal tfca tfdc tfeb tfec tftc tlac ttab ttbb ttfa ttfc ttff tttt