-ana a-wa aaaa aaab aaac aaan aaba aabb aabc aabw aaca aacb aacc aacn aaco aana aaon aaoo aaow aaww abaa abab abac aban abaw abb- abba abbb abbo abca abcb abcc abcn abcw aboa abob abon aboo abow abwa acaa acab acac acan acba acca accc acco acoa acon acow acwa acww ana- anaa anab anac anan anao anba anbb anbo anca ancc anco anna annb anno ano- anoa anon aoba aoca aonb aono awac awan awon awoo awow awwa baaa baan baba babb babo bac- baca bacc bacn baco bana banc bann bano baon baw- bawn bbbb bbwc bcaa bcbc bcca bccc bnoc boab boac boan boba bobb bobo bobw boca boco bona bonc bonn bono boob booc boon boow bowa bown bwaa bwan bwoc c-bo caaa caab caac caan caba cabo cac- caca cacc caco cacw cana canc cann cano cbac cbbc cbca cbcc cbcn cbna cbwa ccaa ccab ccac ccba ccbc ccbn ccca cccb cccc ccna ccnb ccnc ccob ccoc ccow cnaa cnac cnbc cnco cnna coan coba cobb cobo coca coco con- cona conc conn cono coob coon cwac naaa naab naac naan naba nabc nabo naca nacc naco nan- nana nanb nann nano naoc naow nawa nawo nbaa nbbc nbbo nbca nbcc nbco ncaa ncac ncba ncbc ncca nccc nccn ncna ncnc ncoa ncoc ncow ncwc nnnn noaa noac noba nobc nobo noco non- nona nonn nono nonw noo- noob noon nooo nowa nown nwac nwbn nwbw oban obba obbo obon ocab ocac ocan ocbc occa occc occn ocna ocon onab onan onc- onca onco onna onno onon ooaa ooba oona oooo owna owow owwa waaa waac waao waaw waba wabb wabc wabn wabo wabw waca wacb wacc waco wan- wana wanb wanc wann wano waob waoc waon waoo waow wawa wawb wawc wawo wbaa wbab wbac wban wbbb wbbn wbbo wbbw wbca wbcb wbcn wbco wbcw wbna wbnb wbnc wbnw wbob wboc wbon wbow wbwb wbwc wbwn wbwo wcab wcao wcba wcbc wcbw wcca wccb wccc wccn wcco wccw wcna wcnc wcnn wcno wcnw wcoa wcob wcoc wcon wcoo wcwa wcwb wcwc wcwn wnaa wnab wnac wnaw wnba wnbb wnbc wnbn wnbw wnca wncb wncc wncn wnco wncw wnnc wnnw wnob wnoc wnoo wnow wnwc wnwn wnww woaa woab woan woba wobb wobc wobn wobo woca wocb wocc wocn woco wona wonb wonc wonn wonw woob wooc woon woow wowb wowc wown wowo woww wwab wwac wwba wwbb wwbc wwbn wwca wwcb wwcn wwco wwcw wwna wwnb wwnc wwnn wwno wwnw wwon wwow wwwa wwwc wwwn wwww