a-be a-do a-ii aaaa aaab aaac aaad aaae aaai aaba aabb aabc aabd aabi aaca aacb aacc aacd aace aaci aaco aada aadc aade aadi aaea aaec aaib aaic aaii aaoe aaoo abaa abab abac abad abae abai abb- abba abbb abbe abbi abbo abca abcb abcc abcd abci abda abdi abdo abec abed abee abia abib abic abid abie aboa abob abod aboo acaa acab acac acad acae acai acba acca accc accd acce acci acco acda acdb acdc acde acdi ace- acea acec aced aci- acia acic acid acie acoa acod acoe adaa adab adac adad adae adai adao adba adbc adbi adcc adci adda addc addd adde addi addo adea adeb adee adeo adia adib adic adie adio adob adoc adod adoe adoo aeac aebi aecb aeci aede aeio aiai aiba aibo aica aicc aicd aice aida aidb aidc aide aidi aiea aiee aiia aiib aiic aiid aioc aioi aoba aoca aoce ba-i baaa baad baba babb babe babi babo bac- baca bacc bace baci baco bada badb badd bade badi bado baed baia baib baic baid baie baio bbad bbbb bbci bbdd bbdo bbeb bcaa bcbc bcca bccc bcci bcda bcde bcec bcia bcie bdbc bddc bdii bead beba bebb bebe bebi bebo beca beci beda bede bedi bedo beeb beed beia beic beo- beod biad biao biba bibb bibe bibi bibo bica bicc bice bici bico bida bide bidi bido bieb bied bio- bioc bioi boab boac boad boai boba bobb bobe bobi bobo boca boce boco boda bodb bode bodi bodo boea boec boee boeo boi- boid boie boii boob booc bood booe c-bo c-cd caaa caab caac caba cabe cabi cabo cac- caca cacc cace caci caco cada cadc cadd cade cadi cado caec caei caia caib caic caid caio caod caoi cbac cbbc cbca cbcc cbce cbdb cbdc cbdi cbdo cbea cbec cbee cbia cbid ccaa ccab ccac ccad ccai ccba ccbc ccca cccb cccc ccci ccdc ccdi cced ccee ccic ccid ccii ccob ccoc ccod cd-e cdaa cdac cdad cdai cdba cdda cddb cdec cdic cdii cdio ceac cead ceba cec- ceca cece ceci ceco ceda cedd cede cedi cedo ceeb ceec ciaa ciao ciba cibc cibe cibi cibo cica cicc cici cico cida cidc cide cidi ciee ciia ciid ciii ciob coad coai coba cobb cobe cobi cobo coca coce coco coda codd code codi coed coia coob cood d-bo daab daad daae daba dabb dabo daca dace daci dada dade dadi dado daeb daia daid daie daio dbcc dcbc dcca dccb dccc dcci dcdb dcia dcii dcio dddd ddie ddoc deac dead deae deba debe debi dec- deca decc decd dece deci deco deda dedd dede dedi dedo deeb deed deid deie dia- diab diac diad diao diba dibb dibe dibo dica dice dici dico dida dide didi dido diea dieb died diii dioc doab doae doba dobb dobe dobi doca doce doci doco dod- doda dodd dode dodi dodo doea doid doob dood eaba eaca eacc eada eadb eadd eadi eaec ebac ebba ebbc ebbo ebcc ebed ebic ebid eboe eboo ecaa ecac ecad ecai ecao ecbc ecbe ecca eccb eccc ecce ecci ecco ecdc eced ecib eco- ecod edac edad edca edda eddc edde eddi eddo ede- edea edei edia edie edoc edod eeca eede eeea eeee eeoc eiao eica eico eid- eide eidi eido eiec eied eiei eocd eode i-be iaaa iaac iaai iaba iaca iacc iadb iadc iaea iaec iaia ibac ibad ibca ibdo ibea ibec ibed ibia ibid ibie icaa icab icac icad icai icao icbc icbd icca iccb iccc icci icco icdc icdd icde icea icec iced icee icoc icod idad idae idbe idca idce idda iddo idea idec ided idee ideo idia idic idid idie idio idoc ieac iecc ieie ieio iiac iica iicd iida iide iied iiie iiii iiio iioi iioo ioba iobi ioci iod- ioda iodd iode iodo ioee ioii ioio iooi iooo o-eo oade oaic obad obai obba obbo obea obec obed obia obid obie oboe oboi ocab ocac ocad ocbc occa occc occi oce oced ocee odac odai odbo odci odda oddd oddi odea oded odei odeo odia odic odie odio odoo oec- oeca oecc oedo oeec oeid oiba oici oido oiii ooaa ooba oobe oobi ooda oodi ooia ooid oooo