-ana a-ak aaaa aaab aaac aaan aaas aaba aabb aabc aabt aaca aacb aacc aack aacn aacs aact aaka aana aasa aasc aass aast aata aatc aatk aatt abaa abab abac abak aban abas abat abb- abba abbb abbs abbt abca abcb abcc abcn abcs abct abs- absa abss abta abts ac-t acaa acab acac acan acas acat acba acca accc accs acct acks acsa acsc acss acst acta actc acts actt akaa akan akas akca akka akna aksa akst ana- anaa anab anac anak anan anas anat anba anbb anca ancc anct ank- anka anna annb anns annt ansa ant- anta ants antt asaa asab asac asak asan asas asat asba asc- asca ascb ascc asct aska asks askt asnc assa assc assk assn asss asst asta astb astc asts at-t ataa atab atac atak atan atas atat atbs atca atcc atck atcs atka atkt atna atns atsb atsc atst atta attn atts baaa baak baan baas baat baba babb babs bac- baca bacc back bacn bacs bact bak- baka baks bakt bana banc bank bann bans bant basa basc bask bass bast bata batc batn bats batt bbas bbbb bbbs bcaa bcas bcat bcbc bcbs bcca bccc bccs bcsa bcsc bcsn bcss bctc bcts bnas bnss bnta bsaa bsac bsas bsat bscs bskt bsns bssc bsts btaa btan btcc btcs btss bttb caaa caab caac caan caas caat caba cabs cac- caca cacc cack caka cana canc cank cann cans cant casa casb casc cask cass cast cat- cata catb catc cats catt cbac cbat cbbc cbbs cbca cbcc cbcn cbcs cbct cbka cbkn cbna cbsa cbsc cbsn cbta cbtc ccaa ccab ccac ccas ccat ccba ccbc ccbn ccca cccb cccc cccs ccna ccnb ccnc ccns ccsa ccsn ccss ccst cctb cctc cctt ckac ckan ckat ckbc ckck ckcs cknb cknc ckns cknt cksa cksb ckst cktb ckts cnaa cnac cnas cnbc cnna cnsa cnss cnta cntc cntk csaa csab csac csak csas csat cscb cscc cscs cska csks cssa csta cstc csts ctab ctan ctba ctbs ctca ctns ctsa ctsc ctsn ctss ctta cttn ctts kaaa kaab kaak kaan kaas kaat kaba kabb kabc kacb kacc kacs kact kaka kakc kakk kakn kaks kakt kana kanb kann kans kant kas- kasa kasb kasc kask kasn kass kast kat- kata katb katc katk katn kats katt kbaa kbab kbac kbak kbas kbat kbba kbbb kbbc kbbk kbbs kbbt kbca kbcb kbck kbcs kbct kbkb kbkk kbna kbnn kbsa kbsb kbsk kbsn kbss kbst kbta kbtb kbtc kbtk kbtn kbts kbtt kcaa kcab kcac kcas kcat kcba kcbc kcbk kcbs kcca kccb kccc kcck kcct kckc kckk kckn kcnb kcns kcnt kcsa kcsb kcsc kcsn kcss kcst kcta kctb kctc kctn kkaa kkac kkan kkat kkba kkbb kkbn kkbs kkbt kkcb kkck kkcn kkcs kkct kkkk kknb kknn kkns kknt kksa kksn kkss kkst kktc kktk kkts knaa knab knac knan knas knat knba knbb knbc knbn knbt knca kncb knck kncn knct knkk knkt knnb knnk knns knsa knsb knsc knsk knsn knss knst kntk kntn knts ksab ksac ksak ksan ksas ksat ksba ksbc ksbn ksbs ksca kscb ksck kscn kscs kska kskb kskk kskn ksks ksna ksnb ksnc ksnk ksnn ksns ksnt kssa kssn ksss ksst ksta kstb kstc kstk kstn ksts kstt ktaa ktak ktan ktas ktat ktba ktbb ktbc ktbn ktbt ktcc ktck ktcs ktkb ktkc ktkk ktkn ktks ktkt ktna ktnc ktnk ktnn ktns ktnt ktsa ktsc ktsn ktst kttc kttk kttn ktts kttt naaa naab naac naan naas naat naba nabc nabk nabs naca nacc nack nacs naka naks nan- nana nanb nann nans nant nas- nasa nasb nasc nask nass nast nata natc nats natt nbaa nbak nbas nbbc nbca nbcc nbcs ncaa ncac ncat ncba ncbc ncbs ncca nccc nccn nccs ncct ncna ncnc ncsa ncsc ncss ncst ncta nctc nknt nnnn nnsa nnss nntn nsaa nsac nsca nscc nscs nskk nsna nssa nssb nssc nsss nstc nsts ntbc ntcc ntsb ntsc ntss sa-c saab saac saak saan saas saat saba sabb sabc sabs saca sacc sack sacn sacs sact saka sakb sakk saks sana sank sann sans sant sasa sasc sask sass sast sata satb satc satn sats satt sbaa sbac sbas sbbs sbca sbcc sbcs sbct sbsa sbst sbtc sbtk sbtn scaa scab scac scak scan scas scat scba sccc sccs scct sck- scna scnt scsa scsc scsn scst sctc sctn scts skab skac skan skat skn- skss snab snak snas snat snba snca sncc snns ssaa ssab ssac ssan ssas ssat ssbn ssca sscc sscs ssns sssa sssb sssc ssss ssta sstb sstc ssts stab stac stak stan stas stat stbc stbs stca stcc stcs stks stnn stns stss sttc taa- taan taas taat taba tabb tabc tabs taca tacc tack tacs tact taka takk taks takt tana tank tann tans tant tasa tasb tasc task tass tast tata tatb tats tatt tbas tbbs tbca tbcb tbcc tbst tbta tcbs tcca tccc tcnn tctc tcts tkac tkts tnbc tnca tncc tnks tnts tsaa tsat tsbc tsca tscc tsks tsna tssa tsst tstc tsts ttab ttbb ttcn ttss tttt