-ic a-a a-b a-c a-i a-t aaa aab aac aag aai aas aat ab- aba abb abc abg abi abs abt ac- aca acb acc acg aci acs act ag- aga agb agc agg agi ags agt ai- aia aib aic aig aii ais ait as- asa asb asc asg asi ass ast at- ata atb atc atg ati ats att baa bab bac bag bai bas bat bba bbb bbc bbg bbi bbs bbt bca bcb bcc bcg bci bcs bct bga bgb bgc bgg bgi bgs bgt bi- bia bib bic big bii bis bit bsa bsb bsc bsg bsi bss bst bta btb btc btg bti bts btt c-- caa cab cac cag cai cas cat cba cbb cbc cbg cbi cbs cbt cca ccb ccc ccg cci ccs cct cga cgb cgc cgg cgi cgs cgt ci- cia cib cic cig cii cis cit csa csb csc csg csi css cst cta ctb ctc ctg cti cts ctt gaa gab gac gag gai gas gat gba gbc gbg gbi gbs gbt gca gcb gcc gcg gci gcs gct gga ggb ggc ggg ggi ggs ggt gia gib gic gig gii gis git gsa gsb gsc gsg gsi gss gst gta gtb gtc gtg gti gts gtt ia- iaa iab iac iag iai ias iat iba ibb ibc ibg ibi ibs ibt ica icb icc icg ici ics ict iga igb igc igg igi igs igt iia iib iic iii iis iit is- isa isb isc isg isi iss ist ita itb itc itg iti its itt saa sab sac sag sai sas sat sba sbb sbc sbg sbi sbs sbt sca scb scc scg sci scs sct sga sgb sgc sgg sgi sgs sgt sia sib sic sig sii sis sit ss- ssa ssb ssc ssg ssi sss sst sta stb stc stg sti sts stt taa tab tac tag tai tas tat tba tbb tbc tbg tbi tbs tbt tca tcb tcc tcg tci tcs tct tga tgb tgc tgg tgi tgs tgt tia tib tic tig tii tis tit tsa tsb tsc tsg tsi tss tst tta ttb ttc ttg tti tts ttt

a-ii aaaa aaab aaac aaai aaas aaba aabb aabc aabi aabt aaca aacb aacc aaci aacs aact aaib aaic aaii aais aasa aasc aasi aass aast aata aatc aatt abaa abab abac abag abai abas abat abb- abba abbb abbi abbs abbt abca abcb abcc abci abcs abct abia abib abic abig abis abit abs- absa absi abss abta abts ac-t acaa acab acac acag acai acas acat acba acca accc acci accs acct acga acgi acgs aci- acia acic acis acsa acsc acsi acss acst acta actc actg acti acts actt agac agag agai agas agat agba agca agcc agct agga aggi agia agib agic agig agii agis agit agsa agsg agst agta agts aiai aias aiba aica aicc aics aiga aiia aiib aiic aisa aisb aisg aisi aist aita aiti aits aitt asaa asab asac asag asai asas asat asba asc- asca ascb ascc asci asct asgt asia asic asii asis asit assa assc assi asss asst asta astb astc asti asts at-t ataa atab atac atai atas atat atbs atca atcc atcs atia atic atis atit atsb atsc atsi atst atta atti atts ba-i baaa baas baat baba babb babi babs bac- baca bacc baci bacs bact baga bagg bagi bags bagt baia baib baic baig bais bait basa basc basi bass bast bata batc bati bats batt bbas bbbb bbbs bbci bbga bcaa bcas bcat bcbc bcbg bcbs bcca bccc bcci bccs bcgs bcia bcis bcit bcsa bcsc bcss bctc bcts bgca bggs bgia bgst bias biat biba bibb bibi bibs bica bicc bicg bici bics biga bigb bigc bigg bigs bigt biis bis- bisa bisc biss bist bita bitc bits bitt bsaa bsac bsas bsat bsci bscs bsgs bsic bssc bsts btaa btcc btcs btss bttb caaa caab caac caas caat caba cabg cabi cabs cac- caca cacc caci caga cagg cagi cags caia caib caic cais cait casa casb casc casi cass cast cat- cata catb catc cati cats catt cbac cbat cbbc cbbs cbca cbcc cbcs cbct cbga cbgb cbia cbit cbsa cbsc cbsi cbta cbtc ccaa ccab ccac ccag ccai ccas ccat ccba ccbc ccca cccb cccc ccci cccs ccga ccgc ccgs ccgt ccic ccii ccis ccsa ccsg ccsi ccss ccst cctb cctc cctt cgac cgas cgcc cgcg cggs cgis cgsb cgss cgst ciaa cias ciat ciba cibc cibi cica cicc cici cics cict ciga cigi cigs ciia ciii ciis ciit cis- cisa cisc ciss cist cita citb citg citi cits citt csaa csab csac csas csat cscb cscc csci cscs csia csib csis csit cssa csta cstc cstg csts ctab ctag ctba ctbi ctbs ctca ctia ctic ctsa ctsc ctss ctta ctts gaas gaba gabb gabi gabs gabt gaga gagg gagi gags gaia gaig gais gait gasa gasb gasc gasi gass gast gata gatc gati gats gatt gbag gbas gbbs gc-c gcaa gcat gcbc gccc gccs gcic gcii gcss gcst gctc gcts ggbt gggg ggss giaa giac giai gias giat giba gibb gibs gica giga gigg gigi gigs giis gisa giss gist gita gits gsab gsat gsis gtaa gtcs gtta iaaa iaac iaai iaas iaat iaba iaca iacc iacs iact iags iaia iais iasa iasc iasi iata iatc iati ibac ibas ibat ibca ibcs ibga ibia ibis ibsa ibss ibtb ibtc ibts icaa icab icac icag icai icas icat icbc icbs icca iccb iccc icci iccs icct icga icgc icis icsa icsb icsc icsi icss icst icta icts igac igas igba igbc igcc igga iggs igia igis iiac iias iica iiii iiis iiit iisc iisi iist iita iitt is-a isac isai isas isat isba isbt isca iscc isci iscs isct isgc isia isic isis isit issa issc issi isss ista istc isti ists itaa itac itai itas itat itbs itcs itgc itgs itia itic itis itsa itsi itta s-ib s-ic s-ii sa-c saab saac saag saas saat saba sabb sabc sabi sabs