a-do a-ii aaaa aaab aaac aaad aaai aaba aabb aabc aabd aabi aabt aaca aacb aacc aacd aaci aaco aact aada aadc aadi aadt aaib aaic aaii aaoo aata aatc aatt abaa abab abac abad abai abat abb- abba abbb abbi abbo abbt abca abcb abcc abcd abci abct abda abdi abdo abia abib abic abid abit aboa abob abod aboo abot abta ac-t acaa acab acac acad acai acat acba acca accc accd acci acco acct acda acdb acdc acdi acdt aci- acia acic acid acoa acod acot acta actc acti acto actt adaa adab adac adad adai adao adat adba adbc adbi adcc adci adda addc addd addi addo adia adib adic adio adit adob adoc adod adoo adot adta aiai aiba aibo aica aicc aicd aida aidb aidc aidi aidt aiia aiib aiic aiid aioc aioi aita aiti aitt aoba aoca aotc aotd at-t ataa atab atac atad atai atat atca atcc atco atdi atdt atia atic atid atit atob atoc atod atoi atot atta atti atto ba-i baaa baad baat baba babb babi babo bac- baca bacc baci baco bact bada badb badd badi bado baia baib baic baid baio bait bata batc bati bato batt bbad bbbb bbci bbdd bbdo bcaa bcat bcbc bcca bccc bcci bcda bcia bcit bctc bdbc bddc bdii biad biao biat biba bibb bibi bibo bica bicc bici bico bida bidi bido bio- bioc bioi biot bita bitc bitd bito bitt boab boac boad boai boat boba bobb bobi bobo boca boco boda bodb bodi bodo boi- boid boii boit boob booc bood boot bota botb botd boti boto bott btaa btcc btdt btob bttb c-bo c-cd caaa caab caac caat caba cabi cabo cac- caca cacc caci caco cada cadc cadd cadi cado caia caib caic caid caio cait caod caoi cat- cata catb catc catd cati cato catt cbac cbat cbbc cbca cbcc cbct cbdb cbdc cbdi cbdo cbia cbid cbit cbot cbta cbtc ccaa ccab ccac ccad ccai ccat ccba ccbc ccca cccb cccc ccci ccdc ccdi ccic ccid ccii ccob ccoc ccod cctb cctc cctt cdaa cdac cdad cdai cdba cdda cddb cdic cdii cdio cdot ciaa ciao ciat ciba cibc cibi cibo cica cicc cici cico cict cida cidc cidi cidt ciia ciid ciii ciit ciob cita citb citi cito citt coad coai coat coba cobb cobi cobo coca coco coct coda codd codi coia coit coob cood coot cota cotb cotc coti coto cott ctab ctba ctbi ctca ctia ctic ctot ctta d-bo daab daad daba dabb dabo dabt daca daci dact dada dadi dado daia daid daio dait data dati dato datt dbcc dbit dbtt dcbc dcca dccb dccc dcci dcct dcdb dcia dcii dcio dctc dddd ddoc ddot dia- diab diac diad diao diat diba dibb dibo dica dici dico dict dida didi dido diii dioc diot dita diti dito ditt doab doat doba dobb dobi doca doci doco doct dod- doda dodd dodi dodo doid doit doob dood doot dota dotd doti doto dott dtaa dtac dtcc dtot iaaa iaac iaai iaat iaba iaca iacc iact iadb iadc iadt iaia iata iatc iati ibac ibad ibat ibca ibdo ibia ibid ibot ibtb ibtc icaa icab icac icad icai icao icat icbc icbd icca iccb iccc icci icco icct icdc icdd icoc icod icta idad idat idca idda iddo idia idic idid idio idoc idta iiac iica iicd iida iiii iiio iiit iioi iioo iita iitt ioba iobi ioci iod- ioda iodd iodo ioii ioio ioit iooi iooo iota ioto itaa itac itai itat itdo itia itic itoi itoo itta itto oaic obad obai obba obbo obdt obia obid obit oboi obot obtd ocab ocac ocad ocat ocbc occa occc occi occt oct- octa octi octo odac odai odbo odci odda oddd oddi odia odic odio odoo odot oiba oici oido oiii oita oitc oiti ooaa ooba oobi ooda oodi ooia ooid oooo ootb otac otbd otcd otic otit oto- otoo otta otti otto taa- taat taba tabb tabc tabi tabo taca tacc taci taco tact tada tado taia taio tait taoa tata tatb tati tato tatt tbca tbcb tbcc tbcd tbit tbta tcad tcca tccc tcdd tctc tdac tddb tiaa tiab tiao tiba tibi tica ticc tico tidc tidd tiit tita titc titi tito titt toab toad toat toba tobi tobo tobt toca toci toco toda todd todi todo todt toid toit tooa tood toot tota totc totd toti toto tott ttab ttbb tttt