a-be a-ii aaaa aaab aaac aaad aaae aaai aaal aaba aabb aabc aabd aabi aabl aaca aacb aacc aacd aace aaci aacl aada aadc aade aadi aaea aaec aaib aaic aaii aala aalc aald aale aali aall abaa abab abac abad abae abai abal abb- abba abbb abbe abbi abca abcb abcc abcd abci abcl abda abdi abec abed abee abel abia abib abic abid abie abil abla able acaa acab acac acad acae acai acba acbl acca accc accd acce acci acda acdb acdc acde acdi ace- acea acec aced acel aci- acia acic acid acie acla aclc acle acli adaa adab adac adad adae adai adal adba adbc adbi adcc adci adda addc addd adde addi addl adea adeb adee adel adia adib adic adie adle adli aeac aebi aecb aeci aecl aede aela aelc aiai aiba aibl aica aicc aicd aice aida aidb aidc aide aidi aiea aiee aiel aiia aiib aiic aiid aila aild aile aili alaa alac alad alae alai alal alb- alba albc albe albi alca alcc alce ald- alda alde aldi aldl alea alec aled alee ali- alia alib alid alie alii alil all- alla alle alli alll ba-i baaa baad baal baba babb babe babi bac- baca bacc bace baci bada badb badd bade badi baed bael baia baib baic baid baie bail bala balc bald bale bali ball bbad bbbb bbci bbdd bbeb bblb bcaa bcbc bcca bccc bcci bccl bcda bcde bcec bcia bcie bdbc bddc bdii bdle bead beal beba bebb bebe bebi beca beci beda bede bedi bedl beeb beed beel beia beic beil bela beld bele beli bell biad bial biba bibb bibe bibi bibl bica bicc bice bici bida bide bidi bieb bied biel bila bild bile bili bill blaa blab blac blad blae bldc blea bleb bled blee blei blic c-cd caaa caab caac caal caba cabe cabi cac- caca cacc cace caci cada cadc cadd cade cadi caec caei caia caib caic caid cail cala calc cald cale cali call cbac cbal cbbc cbca cbcc cbce cbcl cbdb cbdc cbdi cbea cbec cbee cbia cbid cblb cblc ccaa ccab ccac ccad ccai ccba ccbc ccca cccb cccc ccci cccl ccdc ccdi cced ccee ccel ccic ccid ccii ccil ccla cclc ccli cd-e cdaa cdac cdad cdai cdba cdda cddb cddl cdec cdic cdii cdli ceac cead ceal ceba cec- ceca cece ceci ceda cedd cede cedi ceeb ceec ceel ceil cel- cela celc cele celi cell ciaa cial ciba cibc cibe cibi cica cicc cici cida cidc cide cidi ciee ciel ciia ciid ciii cila cili cill clab clad clai clcd cldc clea clec cled clee clei clib clic clii daab daad daae daal daba dabb daca dace daci dada dade dadi daeb daia daid daie dail dala dale dali dall dbcc dcbc dcca dccb dccc dcci dccl dcdb dcia dcii dcil dcli dddd ddie ddlc deac dead deae deal deba debe debi dec- deca decc decd dece deci decl deda dedd dede dedi deeb deed deel deid deie deil dela deld dele deli dell dia- diab diac diad dial diba dibb dibe dica dice dici dida dide didi diea dieb died diel diii dila dile dili dill dlab dlbd dlia dlib dlii dlil e-cl e-la eaba eaca eacc eada eadb eadd eadi eaec eala ealc eald eale ebac ebal ebba ebbc ebcc ebed ebel ebic ebid ebla ebli ecaa ecac ecad ecai ecal ecbc ecbe ecca eccb eccc ecce ecci eccl ecdc ecdl eced ecib ecil ecla edac edad edca edda eddc edde eddi ede- edea edei edel edia edie edil edla edle eeca eede eeea eeee eele eica eid- eide eidi eiec eied eiei eila eild eile el-b elab elac elad elai elal elba elbe elbi elca elcb elce elda elde eldi elea elec eled elee elia elic elid elie elil ella elle elli i-be iaaa iaac iaai iaal iaba iaca iacc iadb iadc iaea iaec iaia iala iale iall ibac ibad ibca ibea ibec ibed ibia ibid ibie ible icaa icab icac icad icai ical icbc icbd icca iccb iccc icci iccl icdc icdd icde icdl icea icec iced icee icel icle icll idad idae idbe idca idce idda idea idec ided idee idel idia idic idid idie idil idle idli ieac iecc ieie ield iele iiac iica iicd iida iide iied iiie iiii iila ilac ilal ilbc ilca ilcd ilce ilde ile- ilea ilec iled ilia ilic ilie ill- illa illd ille illi laaa laac laad laal laba labe labi laca lacc lace laci lacl lada ladd lade ladi lael laia laic laid laie lail lala lald lale lali lall lbcc lbia lcac lcad lcbc lcca lccc lcce lcdd lcia ldci leaa lead leal leba lebd leca lece leda lede ledi leea leed leel leia leib leic leid leie leil lela lele leli lell liac liba libc libe lica lice lida lidb lide lidl lieb lied liel liia liii lila lilb lile lili lill llcc lldb lldc lllc llll