a-a a-b a-c aaa aab aac aad aan aao aau ab- aba abb abc abd abn abo abu ac- aca acb acc acd acn aco acu ad- ada adb adc add adn ado adu an- ana anb anc and ann ano anu aoa aob aoc aod aon aoo aou au- aua aub auc aud aun auo b-u baa bab bac bad ban bao bau bba bbb bbc bbd bbn bbo bbu bca bcb bcc bcd bcn bco bcu bda bdb bdc bdd bdo bdu bna bnb bnc bnd bnn bno bnu boa bob boc bod bon boo bou bua bub buc bud bun buo buu c-- caa cab cac cad can cao cau cba cbb cbc cbd cbn cbo cbu cca ccb ccc ccd ccn cco ccu cda cdb cdc cdd cdn cdo cdu cn- cna cnb cnc cnd cnn cno cnu co- coa cob coc cod con coo cou cua cub cuc cud cun cuo cuu daa dab dac dad dan dao dau dba dbb dbc dbd dbn dbo dbu dca dcb dcc dcd dcn dco dcu dda ddb ddc ddd ddn ddo ddu dna dnb dnc dnd dnn dno doa dob doc dod don doo dou dua dub duc dud dun duo naa nab nac nad nan nao nau nba nbb nbc nbd nbn nbo nbu nca ncb ncc ncd ncn nco ncu nda ndb ndc ndd ndn ndo ndu nna nnb nnc nnn nno nnu no- noa nob noc nod non noo nou nua nub nuc nud nun nuo nuu oaa oab oac oad oan oao oau ob- oba obb obc obd obn obo obu oc- oca ocb occ ocd ocn oco ocu oda odb odc odd odn odo odu on- ona onb onc ond onn ono onu oo- ooa oob ooc ood oon ooo ou- oua ouc oud oun ouo ua- uaa uab uac uad uan uao uau uba ubb ubc ubn ubo ubu uca ucb ucc ucd ucn uco ucu uda udb udc udd udn udo udu un- una unb unc und unn uno unu uoa uob uoc uod uon uoo uua uuc uun uuu

-ana a-do a-un aaaa aaab aaac aaad aaan aaba aabb aabc aabd aaca aacb aacc aacd aacn aaco aacu aada aadc aadu aana aand aaon aaoo abaa abab abac abad aban abau abb- abba abbb abbo abca abcb abcc abcd abcn abda abdo abdu abnu aboa abob abod abon aboo abou abua abud abun acaa acab acac acad acan acba acca accc accd acco accu acda acdb acdc acoa acod acon acou acu- acuo adaa adab adac adad adan adao adba adbc adcc adda addc addd addn addo addu adna adob adoc adod adon adoo adua adub adun ana- anaa anab anac anad anan anao anau anba anbb anbo anbu anca ancc anco and- anda ando anna annb anno ano- anoa anod anon anua anub anun aoba aoca aonb aono aoun auaa auca audc audo auna baaa baad baan baba babb babo babu bac- baca bacc bacn baco bada badb badd bado badu bana banc band bann bano banu baon bau- baud bbad bbau bbbb bbdd bbdo bcaa bcbc bcca bccc bcda bcnu bcuc bdbc bddc bdna bnoc boab boac boad boan boba bobb bobo bobu boca boco bocu boda bodb bodo bodu bona bonc bond bonn bono bonu boob booc bood boon boua boud boun buad buba bubb bubo bubu buca bucc buco bucu buda budb budd budo budu buna bunb bund bunn buno bunu buon c-bo c-cd caaa caab caac caan caba cabo cabu cac- caca cacc caco cada cadc cadd cado cadu cana canc cand cann cano caod cauc cauo cbac cbbc cbca cbcc cbcn cbcu cbdb cbdc cbdn cbdo cbna cbnd ccaa ccab ccac ccad ccba ccbc ccbn ccca cccb cccc cccu ccdc ccdn ccna ccnb ccnc ccnu ccob ccoc ccod ccuc cdaa cdac cdad cdba cdda cddb cdna cdnb cdnc cdon cnaa cnac cnbc cnco cnda cndd cnna coad coan coba cobb cobo cobu coca coco cocu coda codd con- cona conc cond conn cono coob cood coon coua coub coud coun cuan cuau cub- cuba cubb cuca cucc cucn cuda cuna cund cuno cuon d-bo d-na daab daad daan daau daba dabb dabo dabu daca dada dado dadu dana dand dann dano danu daon daou daub daud daun dbcc dcbc dcca dccb dccc dccu dcdb dcon dddd ddoc ddub dnaa dnab dnac dnad dnan dnoc doab doan doba dobb dobu doca doco docu dod- doda dodd dodo dona donc dond donn dono doob dood doon doub douc doud doun duaa duab duad duan dub- duba dubb dubc dubu duca duco duda dudd dudo dudu duna dunc dunn duno duo- duon naaa naab naac naad naan naba nabc nabo nabu naca nacc nacd naco nada nadc nadu nan- nana nanb nand nann nano nanu naoc nauo nbaa nbad nbbc nbbo nbca nbcc nbco ncaa ncac ncba ncbc ncca nccc nccn nccu ncda ncdc ncdn ncdu ncna ncnc ncnd ncoa ncoc ncua ndaa ndao ndau ndcc nddb nddo ndna ndoc nndb nnnn noaa noac noba nobc nobo nobu noco noda nodo nodu non- nona nonn nono nonu noo- noob noon nooo noun nuan nuba nubc nuca nucu nuda nudc nudd nudo nuna nunc nunn nuno nuoc nuon oaau obad oban obba obbo obon ocab ocac ocad ocan ocbc occa occc occn ocna ocon odac odbo odda oddd odnb odon odoo odou onab onan onc- onca oncd onco onda ondo onna onno onod onon ooaa ooba ooda oona oooo ouac ouad ouan oucc oudc oun- ouna ound ouu- uabc uaca uaoc uaua ubac ubba ubbo uboc ubod ubon ubud ucad ucan ucbc ucca ucdc ucdd ucon ucua udaa udad udau udbc udca udon udoo udun unaa unac unan unau unbd unca uncc unco unda undo unna unno unon uocc uuno uuoc uuuu

-aaa- -abad a-dna aaadc aaaoc aabaa aabba aacbc aadac aandu abaab ababa ababu abaca abaco abada abana abanc aband abann abano abaon abbac abbad abban abbod abbou abbud abcan abccc abcdb abdan abdon abnub aboab