a-be aaaa aaab aaac aaad aaae aaal aaap aaba aabb aabc aabd aabl aabp aabt aaca aacb aacc aacd aace aacl aacp aact aada aadc aade aadt aaea aaec aaep aala aalc aald aale aall aapa aapc aapl aapt aata aatc aatt abaa abab abac abad abae abal abap abat abb- abba abbb abbe abbt abca abcb abcc abcd abcl abcp abct abda abec abed abee abel abet abla able abpa abpc abpd abpp abta ac-t acaa acab acac acad acae acap acat acba acbl acca accc accd acce accp acct acda acdb acdc acde acdp acdt ace- acea acec aced acel acet acla aclc acle acpa acpd acpe acpt acta actc acte actl actt adaa adab adac adad adae adal adap adat adba adbc adcc adda addc addd adde addl adea adeb adee adel adet adle adp- adta aeac aeap aecb aecl aect aede aedt aela aelc aelp aeta aetc aett al-p alaa alac alad alae alal alap alat alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee alep alet all- alla alle alll alpa alpe alpl alta alte apac apal apap apat apba apca apcb apcc apcd apda apdd apea apec aped apel apep apet apl- apla aple aplp appa appc appd appl appt apta aptc apte aptt at-l at-t ataa atab atac atad atae atal atap atat atca atcc atcl atdt atea atec ated atee atel atep atla atle atta atte attp baaa baad baal baat baba babb babe bac- baca bacc bace bact bada badb badd bade baed bael bala balc bald bale ball balt bapa bapc bape bapp bapt bata batc bate batt bbad bbbb bbdd bbeb bbet bblb bcaa bcap bcat bcbc bcbp bcca bccc bccl bcda bcde bcec bcet bcpl bcpp bctc bdbc bddc bdle bdpc bead beal beap beat beba bebb bebe beca beda bede bedl beeb beed beel beep beet bela beld bele bell belp belt beta betc bete bett blaa blab blac blad blae blat blbt bldc blea bleb bled blee blet bpcp bpda bpea bpel btaa btbp btcc btcl btdt btec btla btlp bttb c-cd caaa caab caac caal caap caat caba cabe cac- caca cacc cace cada cadc cadd cade caec cala calc cald cale call calp calt capa capb capc capd cape capp capt cat- cata catb catc catd cate catt cbac cbal cbat cbbc cbca cbcc cbce cbcl cbcp cbct cbdb cbdc cbea cbec cbee cbet cblb cblc cbpc cbpp cbta cbtc cbtl ccaa ccab ccac ccad ccap ccat ccba ccbc ccca cccb cccc cccl cccp ccdc ccdp cced ccee ccel ccla cclc ccpa ccpe ccpl ccpp cctb cctc cctl cctt cd-e cdaa cdac cdad cdba cdda cddb cddl cdec ceac cead ceal ceat ceba cebp cec- ceca cece cecp cect ceda cedd cede cedt ceeb ceec ceel cel- cela celc cele cell celt cepa cepc cepe cepp cept cet- ceta cete cetp clab clad clap clat clcd cldc clea clec cled clee clep clet clpb clpp cltb cltc cpaa cpac cpad cpap cpbc cpca cpce cpdl cpea cpeb cpep cplc cppa cppd cptp ctab ctae ctal ctba ctca ctcp ctec ctep ctle ctpp ctta daab daad daae daal daap daba dabb dabp dabt daca dace dact dada dade daeb dala dale dall dalt dapa dape dapp data date datp datt dbcc dbcp dblp dbpc dbpd dbtt dcbc dcca dccb dccc dccl dccp dcct dcdb dcpl dctc dddd ddlc deac dead deae deal deap deba debe debt dec- deca decc decd dece decl dect deda dedd dede deeb deed deel deep deet dela deld dele dell delp delt depa depc depe depp dept deta dete dlab dlbd dpaa dpac dpbc dpcp dpdt dpll dppa dppc dtaa dtac dtap dtcc dtdp dted dtla dtle dtpl dttp e-cl e-la eaba eaca eacc eada eadb eadd eadp eaec eala ealc eald eale eapc eapp eata eate ebac ebal ebba ebbc ebcc ebed ebel ebla ecaa ecac ecad ecal ecat ecbc ecbe ecca eccb eccc ecce eccl ecct ecdc ecdl eced ecla eclt ecpa ecpd ecpp ect- ecta ectc edac edad edca edda eddc edde eddp ede- edea edel edla edle edta eeca eede eeea eeee eele eeta eetc eete el-b el-p elab elac elad elal elat elba elbe elca elcb elce elda elde elea elec eled elee elet ella elle elpe elta elte epaa epac epad epcc epec epee eple epll eppa eppc eppp epta epte etal etap etat etbc etcc etec etee etel etla etta ette laaa laac laad laal laap laat laba labe laca lacc lace lacl lacp lact lada ladd lade ladp lael laet lala lald lale lall lapa lapb lapc lapd lape lapp lapt lata latc latd late latt lbcc lcac lcad lcat lcbc lcca lccc lcce lcdd lcdp lcpa lcpc lcpd lcpl lctl lddp ldpc leaa lead leal leap leat leba lebd leca lece lect leda lede ledt leea leed leel leep leet lela lele lell lepa lepe lepp lept leta lete lett llat llcc lldb lldc lldp llet lllc llll lpac lpda lpec lpla lppl lptb ltac ltae ltap ltbl ltcc ltee ltpa lttc paal paap paat paba pabt paca pacd pace pact pada padd pade paea paec paep pala pale pall palp palt papa papb pape papp pata patd pate patt pbac pbcc pbed pbpa pcaa pcad pcae pcap pcba pcbc pcca pccc pcce pccl pcea pcep pcll pcpb pcpp pcte pdac pdca pdcp pdea pdlc pdpa pdtc peab peac peal peap peat peba pebl peca pece pecl pect ped- peda pede peec peed peel peep peet pel- pela pelb pele pell pelt pepa pepd pepe peta pete pett plaa plab plac plad plap plat plcc plce pldt ple- plea pleb plec pled plee plet plpa plpp pltt ppac ppad ppal ppap ppcc ppcd pple pppa pppd pppp ppta pptt ptab ptal ptbl ptca ptcc ptcl ptdc ptld ptpd pttc taa- taal taat taba tabb tabc tabe tabl taca tacc tace tacl tact tada tade taec tael tala talc tale tall tapa tape tapp tapt tata