a-a a-b aaa aab aad aaf aak aan aao aas ab- aba abb abd abf abk abn abo abs ad- ada adb add adf adk adn ado ads af- afa afb afd aff afk afn afo afs aka akb akd akk akn ako aks an- ana anb and anf ank ann ano ans aoa aob aod aof aok aon aoo aos as- asa asb asd asf ask asn aso ass baa bab bad baf bak ban bao bas bba bbb bbd bbf bbk bbn bbo bbs bda bdb bdd bdf bdk bdo bds bfa bfb bfd bff bfn bfo bfs bka bkb bkf bkk bkn bko bks bna bnb bnd bnf bnk bnn bno bns boa bob bod bof bok bon boo bos bsa bsb bsd bsf bsk bsn bso bss daa dab dad daf dak dan dao das dba dbb dbd dbf dbk dbn dbo dbs dda ddb ddd ddf ddk ddn ddo dds dfa dfb dfd dff dfk dfn dfo dfs dka dkb dkk dko dks dna dnb dnd dnf dnk dnn dno dns doa dob dod dof dok don doo dos dsa dsb dsd dsf dsk dsn dso dss faa fab fad faf fak fan fao fas fba fbb fbd fbf fbk fbn fbo fbs fda fdb fdd fdf fdk fdn fdo fds ffa ffd fff ffk ffn ffo ffs fka fkb fkf fkk fna fnb fnd fnf fnk fnn fns foa fob fof fok fon foo fos fsa fsb fsd fsf fsk fsn fso fss ka- kaa kab kad kaf kak kan kao kas kba kbb kbd kbf kbk kbn kbo kbs kda kdb kdf kdk kdo kds kfa kfd kff kfo kfs kkb kkk kkn kks kn- kna knd knf knk knn kno koa kob kod kof kok kon koo kos ksa ksb ksd ksf ksk ksn kso kss naa nab nad naf nak nan nao nas nba nbb nbd nbf nbk nbn nbo nbs nda ndb ndd ndf ndk ndn ndo nds nfa nfb nfd nff nfk nfn nfo nfs nka nkf nkk nkn nko nks nna nnb nnf nnk nnn nno nns no- noa nob nod nof nok non noo nos nsa nsb nsd nsf nsk nsn nso nss oaa oab oad oaf oak oan oao oas ob- oba obb obd obf obk obn obo obs oda odb odd odf odn odo ods of- ofa ofb ofd off ofn ofo ofs oka okb okd okk oko oks on- ona onb ond onf onk onn ono ons oo- ooa oob ood oof ook oon ooo oos os- osa osb osd osf osk osn oso oss saa sab sad saf sak san sao sas sba sbb sbd sbf sbk sbn sbo sbs sda sdb sdd sdf sdk sdn sdo sds sfa sfb sfd sff sfk sfn sfo sfs sk- ska skb skd skf skk sko sks sna snb snd snf snk snn sno sns soa sob sod sof sok son soo sos ss- ssa ssb ssd ssf ssk ssn sso sss

-ana a-ak a-do a-ok aaaa aaab aaad aaaf aaan aaas aaba aabb aabd aada aads aafa aafb aafd aaff aaka aana aand aaon aaoo aasa aasd aasf aass abaa abab abad abaf abak aban abas abb- abba abbb abbo abbs abda abdo abff aboa abob abod abof abok abon aboo abos abs- absa absd absf abss adaa adab adad adak adan adao adas adba adda addd addn addo adds adfa adfs adna adns adob adod adok adon adoo ados adsa adso adss afaa afad afak afan afao afbs afdb affa affo affs afka afoa afoo afsa afsb akaa akan akao akas akdn akka akko akna akok akon akos aksa ana- anaa anab anad anak anan anao anas anba anbb anbo and- anda ando ands anfa anfo ank- anka anko anna annb anno anns ano- anoa anod anon anos ansa ansd ansf anso aoba aoks aonb aono aosd aoss asaa asab asad asaf asak asan asao asas asba asbo asda asdf asdo asds asfa aska asko asks asno asob asod asof asok ason asos assa assd assk assn asso asss baaa baad baaf baak baan baas baba babb babo babs bada badb badd bado bads baff bafo bak- baka bako baks bana band bank bann bano bans baon baos basa basf bask baso bass bbad bbas bbbb bbbs bbdd bbdo bbfn bdna bdos bdsd bfas bffs bnas bnss boab boad boak boan boas boba bobb bobo bobs boda bodb bodo bods bofa bofd boff bofs boka bokn boko boks bona bond bonk bonn bono bons boob bood boof book boon boos bosa bosk bosn boso boss bsaa bsas bsbd bsfa bsff bsfs bsnd bsns bsod bson bsos bssd d-bo d-na daab daad daan daas daba dabb dabo dabs dada dado dads dafa daff dafo dafs daka dako daks dana dand dank dann dano dans daon daos dasa dasb dasd dask dass dbas dbfo dbfs dbos dbsa dbss dddd ddss dfaf dfas dfds dffa dkba dnaa dnab dnad dnan dnas dnsa doab doak doan doas doba dobb dobs dod- doda dodd dodo dods doff doka doko dona dond donk donn dono dons doob dood doof dook doon doos dosa dosk doso doss dsba dsda dsfa dsoa dsos dssa dssn f--k faaa faad faan faas faba fabd fabo fabs fada fadd fado fads fafa faff fafo fako fana fand fank fano fans faon fasa fasd fasn faso fass fbsd fdoa fdos ffff ffsa ffss fkab fndd fndn foad foaf foak foan foba fobs foda fofo fond fono fons food foof fook foon foos fosa fosb foso foss fsas fsfo fssa fssf k-os kaaa kaab kaaf kaak kaan kaas kaba kabb kabd kabf kabo kad- kada kadd kadf kado kads kafa kaff kafn kafs kaka kakk kakn kako kaks kana kanb kand kanf kann kano kans kaoa kaok kaon kaos kas- kasa kasb kasf kask kasn kaso kass kbaa kbab kbad kbak kbas kbba kbbb kbbd kbbf kbbk kbbo kbbs kbdb kbdf kbdn kbdo kbds kbfb kbff kbfk kbfo kbfs kbkb kbkf kbkk kbko kbna kbnd kbnn kbno