a-be a-ii aaaa aaab aaac aaae aaai aaal aaba aabb aabc aabi aabl aaca aacb aacc aace aaci aacl aaea aaec aaib aaic aaii aala aalc aale aali aall abaa abab abac abae abai abaj abal abb- abba abbb abbe abbi abca abcb abcc abci abcl abec abee abel abia abib abic abie abil abla able ablj acaa acab acac acae acai acba acbl acca accc acce acci ace- acea acec acel aci- acia acic acie acla aclc acle acli aeac aebi aecb aeci aecl aela aelc aiai aiba aibl aica aicc aice aiea aiee aiel aiia aiib aiic aija aila aile aili ajab ajac ajba ajee ajil ajla alaa alac alae alai alal alb- alba albc albe albi alca alcc alce alea alec alee ali- alia alib alie alii alil all- alla alle alli alll ba-i baaa baal baba babb babe babi bac- baca bacc bace baci bael baia baib baic baie bail baja baji bala balc bale bali ball bbbb bbci bbeb bblb bcaa bcbc bcca bccc bcci bccl bcec bcia bcie beal beba bebb bebe bebi beca beci beeb beej beel beia beic beij beil beja bela bele beli bell biaj bial biba bibb bibe bibi bibl bica bicc bice bici bieb biel bija biji bijl bila bile bili bill bjcc bjec blaa blab blac blae blaj blea bleb blee blei blic caaa caab caac caal caba cabe cabi cac- caca cacc cace caci caec caei caia caib caic cail caja caji cala calc cale cali call cbac cbal cbbc cbca cbcc cbce cbcl cbea cbec cbee cbia cblb cblc ccaa ccab ccac ccai ccba ccbc ccca cccb cccc ccci cccl ccee ccel ccic ccii ccil ccla cclc ccli ceac ceal ceba cec- ceca cece ceci ceeb ceec ceel ceil ceja cejc cel- cela celc cele celi cell ciaa cial ciba cibc cibe cibi cica cicc cici ciee ciel ciia ciii cila cili cill cjbc cjca cjcb cjcj cjcl cjic cjli clab clai clea clec clee clei clib clic clii e-cl e-la eaba eaca eacc eaec eala ealc eale ebac ebal ebba ebbc ebcc ebel ebic ebla ebli ecaa ecac ecai ecal ecbc ecbe ecca eccb eccc ecce ecci eccl ecib ecil ecla eeca eeea eeee eele eica eiec eiei eija eiji eila eile ejji el-b elab elac elai elal elba elbe elbi elca elcb elce elea elec elee elia elic elie elij elil ella elle elli i-be iaaa iaac iaai iaal iaba iaca iacc iaea iaec iaia iala iale iall ibac ibca ibea ibec ibia ibie ible icaa icab icac icai ical icbc icca iccb iccc icci iccl icea icec icee icel icle icll ieac iecc ieie iele iiac iica iiie iiii iila ijji ilac ilal ilbc ilca ilce ile- ilea ilec ilia ilic ilie ilja ill- illa ille illi jaal jaba jabi jaca jacc jace jaci jacl jael jail jaja jaji jala jalc jale jali jbaa jbel jcbc jccc jcci jebb jebe jeci jeel jeli jell jibb jibe jibi jije jiji jila jili jill jjcc jlab laaa laac laaj laal laba labe labi laca lacc lace laci lacl lael laia laic laie lail laja laje lala lale lali lall lbcc lbia lcac lcbc lcca lccc lcce lcia leaa leal leba leca lece leea leej leel leia leib leic leie leil lela lele leli lell liac liba libc libe lica lice lieb liel liia liii lij- lija lila lilb lile lili lill ljeb ljla llcc lllc llll