a-do aaaa aaab aaac aaad aaam aaba aabb aabc aabd aabm aaca aacb aacc aacd aacm aaco aada aadc aama aamb aamc aamd aamo aaoo abaa abab abac abad abam abb- abba abbb abbo abca abcb abcc abcd abda abdo abma abmb abmc aboa abob abod aboo acaa acab acac acad acba acca accc accd accm acco acda acdb acdc acdm acma acmc acoa acod acom adaa adab adac adad adam adao adba adbc adcc adda addc addd addo adma admb adob adoc adod adoo amaa amac amad amam amb- amba ambo amca amcc amco amda amdo amm- amma ammo amob amoc amod amoo aoba aoca aoma baaa baad baam baba babb babm babo bac- baca bacc baco bada badb badd bado bama bamb bamc bamm bbad bbbb bbcm bbdd bbdo bcaa bcam bcbc bcca bccc bccm bcda bcma bdbc bddc bmaa bmdb bmoc boab boac boad boba bobb bobo boca bocm boco boda bodb bodo boma bomb boob booc bood boom c-bo c-cd caaa caab caac caam caba cabo cac- caca cacc cacm caco cada cadc cadd cadm cado cama camb camc camm camo caod cbac cbbc cbca cbcc cbcm cbdb cbdc cbdo ccaa ccab ccac ccad ccam ccba ccbc ccca cccb cccc cccm ccdc ccdm ccma ccmb ccmc ccmd ccmm ccob ccoc ccod ccom cdaa cdac cdad cdba cdda cddb cdma cdom cmaa cmac cmba cmbc cmcc cmda cmdb cmmb cmmc cmoc coad coba cobb cobo coca coco coda codd com- coma comb comc comd comm como coob cood coom d-bo daab daad daam daba dabb dabo daca dada dado dama damb damm damo dbcc dcbc dcca dccb dccc dcdb dcma dcom dddd ddoc dmaa dmab dmac dmba dmcc dmcm dmdc doab doba dobb doca doco dod- doda dodd dodo doma domb domm domo doob dood doom maaa maac maad maam maba mabo mac- maca macb macc macd maco mada madb madc madd mado mama mamc mamo maoc mbac mbam mbba mbca mbda mbdb mcaa mcac mcad mcba mcbc mcca mccc mccd mcdc mcdd mcdo mcmc mdac mdca mdcc mddm mdma mdmc mdoc mmaa mmab mmac mmcc mmcd mmcm mmda mmdb mmdc mmmc mmmd mmmm mmod moaa moab moac moam moba mobb mobo moca moco moda modd modo moma momo mooa moob mooc mood oadm oama obad obba obbo ocab ocac ocad ocam ocbc occa occc ocma ocom odac odam odbo odda oddd odma odom odoo omac omam omao ombo omca omda omdb omma omo- omoa omoo ooaa ooba ooda ooma oooo