-ana aaaa aaab aaac aaan aaas aaba aabb aabc aaca aacb aacc aacn aaco aacs aana aaon aaoo aasa aasc aass abaa abab abac abaj aban abas abb- abba abbb abbo abbs abca abcb abcc abcn abcs abjs aboa abob abon aboo abos abs- absa abss acaa acab acac acan acas acba acca accc acco accs acoa acon acos acsa acsc acss ajab ajac ajan ajao ajas ajba ajna ajob ajon ajoo ajss ana- anaa anab anac anan anao anas anba anbb anbo anca ancc anco anja anjo anna annb anno anns ano- anoa anon anos ansa anso aoba aoca aocs aonb aono aoss asaa asab asac asan asao asas asba asbo asc- asca ascb ascc ascj asco asja asnc asno asob asoc ason asos assa assc assn asso asss baaa baan baas baba babb babo babs bac- baca bacc bacn baco bacs baja bajs bana banc banj bann bano bans baon baos basa basc baso bass bbas bbbb bbbs bcaa bcas bcbc bcbs bcca bccc bccs bcos bcsa bcsc bcsn bcss bjcc bjoa bnas bnoc bnss boab boac boan boas boba bobb bobo bobs boca boco bocs bojo bona bonc bonn bono bons boob booc boon boos bosa bosc bosn boso boss bsaa bsac bsas bscs bsns bson bsos bssc c-bo caaa caab caac caan caas caba cabo cabs cac- caca cacc caco caja cana canc cann cano cans caos casa casb casc caso cass cbac cbbc cbbs cbca cbcc cbcn cbcs cbna cbsa cbsc cbsn ccaa ccab ccac ccas ccba ccbc ccbn ccca cccb cccc cccs ccjo ccna ccnb ccnc ccns ccob ccoc ccsa ccsn ccss cjan cjbc cjca cjcb cjcj cjcs cjnb cjob cjon cjsb cjsn cjss cnaa cnac cnas cnbc cnco cnna cnnj cnsa cnss coan coas coba cobb cobo cobs coca coco cojo con- cona conc conj conn cono cons coob coon coos cosa cosc coso coss csaa csab csac csao csas cscb cscc csco cscs csob csos cssa jaan jaas jaba jabo jabs jaca jacc jaco jacs jaja jana jann jano jans jaon jasa jasc jasn jaso jass jbaa jbob jcbc jccc jcss jjcc jnco joab joan joao joba jobo jobs joca joco jojo jona jonn jono jons joon joos josa joso joss json jsss naaa naab naac naan naas naba nabc nabo nabs naca nacc naco nacs naja nan- nana nanb nann nano nans naoc naos nas- nasa nasb nasc naso nass nbaa nbas nbbc nbbj nbbo nbca nbcc nbco nbcs ncaa ncac ncba ncbc ncbs ncca nccc nccn nccs ncna ncnc ncoa ncoc ncos ncsa ncsc ncss njaa njac njbs nnnn nnos nnsa nnss noaa noac noba nobc nobo nobs noco nocs noja non- nona nonn nono nons noo- noob nooj noon nooo noos nos- nosa noss nsaa nsac nsbo nsca nscc nscs nsna nsos nssa nssb nssc nsso nsss oasc oass oban obas obba obbo obja obon obos obsn obss ocab ocac ocan ocas ocbc occa occc occn ocna ocon ocos ocsa ojan ojas ojos onab onan onas onc- onca onco onna onno onon onos onsc onso ooaa ooba oona oons oooo ooos oosa osan osas osba osca oscc osco osno osoo osos ossa ossb osso s-os sa-c saab saac saaj saan saas saba sabb sabc sabo sabs saca sacc sacn saco sacs saja sana sanj sann sano sans saon saos sasa sasc saso sass sbaa sbac sbas sbbs sbca sbcc sbcs sbsa scaa scab scac scan scas scba sccc sccs scna scob scon scoo scsa scsc scsn scso sjab sjac sjcc sjcs sjoa sjon snab snas snba snca sncc snco snns snoa snob snoc snoo snos soan soas soba sobo sobs soca soco socs soja son- sona sono sons soon soos sosa soso soss ssaa ssab ssac ssan ssao ssas ssbn ssca sscc sscs ssns ssoc sssa sssb sssc ssss