-ic a-a a-b a-c a-i a-t aaa aab aac aai aan aas aat ab- aba abb abc abi abn abs abt ac- aca acb acc aci acn acs act ai- aia aib aic aii ain ais ait an- ana anb anc ani ann ans ant as- asa asb asc asi asn ass ast at- ata atb atc ati atn ats att baa bab bac bai ban bas bat bba bbb bbc bbi bbn bbs bbt bca bcb bcc bci bcn bcs bct bi- bia bib bic bii bin bis bit bna bnb bnc bni bnn bns bnt bsa bsb bsc bsi bsn bss bst bta btb btc bti btn bts btt c-- caa cab cac cai can cas cat cba cbb cbc cbi cbn cbs cbt cca ccb ccc cci ccn ccs cct ci- cia cib cic cii cin cis cit cn- cna cnb cnc cni cnn cns cnt csa csb csc csi csn css cst cta ctb ctc cti ctn cts ctt ia- iaa iab iac iai ian ias iat iba ibb ibc ibi ibn ibs ibt ica icb icc ici icn ics ict iia iib iic iii iin iis iit in- ina inb inc ini inn ins int is- isa isb isc isi isn iss ist ita itb itc iti itn its itt n-i naa nab nac nai nan nas nat nba nbb nbc nbi nbn nbs nbt nca ncb ncc nci ncn ncs nct nia nib nic nii nin nis nit nna nnb nnc nni nnn nns nnt nsa nsb nsc nsi nsn nss nst nta ntb ntc nti ntn nts ntt saa sab sac sai san sas sat sba sbb sbc sbi sbn sbs sbt sca scb scc sci scn scs sct sia sib sic sii sin sis sit sna snb snc sni snn sns snt ss- ssa ssb ssc ssi ssn sss sst sta stb stc sti stn sts stt taa tab tac tai tan tas tat tba tbb tbc tbi tbn tbs tbt tca tcb tcc tci tcn tcs tct tia tib tic tii tin tis tit tna tnb tnc tni tnn tns tnt tsa tsb tsc tsi tsn tss tst tta ttb ttc tti ttn tts ttt

-ana a-ii aaaa aaab aaac aaai aaan aaas aaba aabb aabc aabi aabt aaca aacb aacc aaci aacn aacs aact aaib aaic aaii aain aais aana aani aasa aasc aasi aass aast aata aatc aatt abaa abab abac abai aban abas abat abb- abba abbb abbi abbs abbt abca abcb abcc abci abcn abcs abct abia abib abic abin abis abit abs- absa absi abss abta abts ac-t acaa acab acac acai acan acas acat acba acca accc acci accs acct aci- acia acic acin acis acsa acsc acsi acss acst acta actc acti acts actt aiai aian aias aiba aibn aica aicc aics aiia aiib aiic aiin aina ainc aini ains aint aisa aisb aisi aist aita aiti aits aitt ana- anaa anab anac anai anan anas anat anba anbb anbi anca ancc anct ania anib anic anin anis anit anna annb anni anns annt ansa ansi ant- anta anti ants antt asaa asab asac asai asan asas asat asba asc- asca ascb ascc asci asct asia asic asii asin asis asit asnc asni assa assc assi assn asss asst asta astb astc asti asts at-t ataa atab atac atai atan atas atat atbs atca atcc atcs atia atic atin atis atit atna atns atsb atsc atsi atst atta atti attn atts ba-i baaa baan baas baat baba babb babi babs bac- baca bacc baci bacn bacs bact baia baib baic bain bais bait bana banc bani bann bans bant basa basc basi bass bast bata batc bati batn bats batt bbas bbbb bbbs bbci bbin bcaa bcas bcat bcbc bcbs bcca bccc bcci bccs bcia bcis bcit bcsa bcsc bcsn bcss bctc bcts bian bias biat biba bibb bibi bibs bica bicc bici bics biin biis bin- bina binc bini binn bins bint bis- bisa bisc biss bist bita bitc bits bitt bnai bnas bnib bnin bnss bnta bsaa bsac bsas bsat bsci bscs bsic bsin bsns bssc bsts btaa btan btcc btcs btss bttb caaa caab caac caan caas caat caba cabi cabs cac- caca cacc caci caia caib caic cain cais cait cana canc cani cann cans cant casa casb casc casi cass cast cat- cata catb catc cati cats catt cbac cbat cbbc cbbs cbca cbcc cbcn cbcs cbct cbia cbit cbna cbsa cbsc cbsi cbsn cbta cbtc ccaa ccab ccac ccai ccas ccat ccba ccbc ccbn ccca cccb cccc ccci cccs ccic ccii ccis ccna ccnb ccnc ccni ccns ccsa ccsi ccsn ccss ccst cctb cctc cctt ciaa cian cias ciat ciba cibc cibi cica cicc cici cics cict ciia ciii ciis ciit cin- cina cinc cini cint cis- cisa cisc cisn ciss cist cita citb citi cits citt cnaa cnac cnas cnbc cnci cnib cnic cnna cnsa cnss cnta cntc csaa csab csac csas csat cscb cscc csci cscs csia csib csis csit cssa csta cstc csts ctab ctan ctba ctbi ctbs ctca ctia ctic ctns ctsa ctsc ctsn ctss ctta cttn ctts iaaa iaac iaai iaas iaat iaba iaca iacc iacs iact iaia iain iais iana ians iasa iasc iasi iata iatc iati ibac iban ibas ibat ibca ibcs ibia ibis ibns ibsa ibsn ibss ibtb ibtc ibts icaa icab icac icai ican icas icat icbc icbs icca iccb iccc icci iccn iccs icct icis icnb icnc icns icsa icsb icsc icsi icss icst icta icts iiac iias iica iiii iiis iiit iisc iisi iist iita iitt inab inac inai inan inas inat inba inca incb inci incs inia inis init inna inni inns insa insc inss inst inta inti intn ints is-a isac isai isan isas isat isba isbn isbt isca iscc isci iscn iscs isct isia isic isin isis isit isna isnt issa issc issi isss ista istc isti ists itaa itac itai itan itas itat itbs itcs itia itic itin itis itsa itsi itta n-ii