-ic a-a a-b a-c a-i a-t aaa aab aac aai aar aas aat ab- aba abb abc abi abr abs abt ac- aca acb acc aci acr acs act ai- aia aib aic aii air ais ait ar- ara arb arc ari arr ars art as- asa asb asc asi asr ass ast at- ata atb atc ati atr ats att baa bab bac bai bar bas bat bba bbb bbc bbi bbr bbs bbt bca bcb bcc bci bcr bcs bct bi- bia bib bic bii bir bis bit bra brb bri brr brs brt bsa bsb bsc bsi bsr bss bst bta btb btc bti btr bts btt c-- caa cab cac cai car cas cat cba cbb cbc cbi cbr cbs cbt cca ccb ccc cci ccr ccs cct ci- cia cib cic cii cir cis cit cra crb crc cri crr crs crt csa csb csc csi csr css cst cta ctb ctc cti ctr cts ctt ia- iaa iab iac iai iar ias iat iba ibb ibc ibi ibr ibs ibt ica icb icc ici icr ics ict iia iib iic iii iir iis iit ir- ira irb irc iri irr irs irt is- isa isb isc isi isr iss ist ita itb itc iti its itt ra- raa rab rac rai rar ras rat rba rbb rbc rbi rbr rbs rbt rca rcb rcc rci rcr rcs rct ria rib ric rii rir ris rit rra rrb rrc rri rrr rrs rrt rsa rsb rsc rsi rsr rss rst rta rtb rtc rti rtr rts rtt saa sab sac sai sar sas sat sba sbb sbc sbi sbr sbs sbt sca scb scc sci scr scs sct sia sib sic sii sir sis sit sr- sra srb src sri srr srs srt ss- ssa ssb ssc ssi ssr sss sst sta stb stc sti str sts stt taa tab tac tai tar tas tat tba tbb tbc tbi tbr tbs tbt tca tcb tcc tci tcr tcs tct tia tib tic tii tir tis tit tra trb trc tri trr trs trt tsa tsb tsc tsi tsr tss tst tta ttb ttc tti ttr tts ttt

a-ii aaaa aaab aaac aaai aaar aaas aaba aabb aabc aabi aabt aaca aacb aacc aaci aacr aacs aact aaib aaic aaii aais aara aarc aari aars aart aasa aasc aasi aass aast aata aatc aatt abaa abab abac abai abar abas abat abb- abba abbb abbi abbr abbs abbt abca abcb abcc abci abcr abcs abct abia abib abic abir abis abit abra abrc abri abrs abs- absa absi abss abta abts ac-t acaa acab acac acai acar acas acat acba acca accc acci accs acct aci- acia acic acir acis acr- acra acrc acri acrr acrs acsa acsc acsi acss acst acta actc acti acts actt aiai aias aiba aica aicc aicr aics aiia aiib aiic aiir aira airi airs airt aisa aisb aisi aisr aist aita aiti aitr aits aitt arab arac arai arar aras arat arba arbi arbs arc- arca arci arcs arct aria arib arii aris arit arr- arra arrc arri arrr arrs arrt ars- arsa arsc arsi arst arta artc arti artr arts asaa asab asac asai asar asas asat asba asc- asca ascb ascc asci ascr asct asia asic asii asir asis asit asra asrc asrs assa assc assi assr asss asst asta astb astc asti astr asts at-t ataa atab atac atai atar atas atat atbs atca atcc atcr atcs atia atic atis atit atra atrc atri atsb atsc atsi atst atta atti attr atts ba-i baaa baar baas baat baba babb babi babr babs bac- baca bacc baci bacs bact baia baib baic bair bais bait bar- bara barb barc bari barr bars bart basa basc basi bass bast bata batc bati bats batt bbas bbbb bbbs bbci bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bcci bccs bcia bcis bcit bcra bcrs bcsa bcsc bcss bctc bcts biar bias biat biba bibb bibi bibs bica bicc bici bics biis bira birb biri birr birs birt bis- bisa bisc biss bist bita bitc bits bitt brab brac brai bras brat brca brcb bria bric bris brit brrr brrs brsb brsr brst brtc bsaa bsac bsas bsat bsci bscs bsic bsra bssc bsts btaa btcc btcs btrc btrt btss bttb caaa caab caac caas caat caba cabi cabs cac- caca cacc caci cacr caia caib caic cair cais cait cara carb carc cari carr cars cart casa casb casc casi casr cass cast cat- cata catb catc cati cats catt cbac cbar cbat cbbc cbbs cbca cbcc cbcr cbcs cbct cbia cbir cbit cbrt cbsa cbsc cbsi cbta cbtc ccaa ccab ccac ccai ccar ccas ccat ccba ccbc ccca cccb cccc ccci cccs ccic ccii ccir ccis ccra ccrc ccri ccrs ccrt ccsa ccsi ccss ccst cctb cctc cctt ciaa ciar cias ciat ciba cibc cibi cica cicc cici cicr cics cict ciia ciii ciis ciit cira cirb circ ciri cirr cirs cirt cis- cisa cisc cisr ciss cist cita citb citi cits citt crab crac crai crar cras crat crbc crca crcc crcr cria crib cric cris crit crrt crsa crss crst crtc crts csaa csab csac csar csas csat cscb cscc csci cscr cscs csia csib csir csis csit csra csrc csrs cssa cssr csta cstc cstr csts ctab ctba ctbi ctbs ctca ctia ctic ctrc ctrs ctsa ctsc ctss ctta ctts iaaa iaac iaai iaas iaat iaba iaca iacc iacr iacs iact iaia iais iara iarc iars iart iasa iasc iasi iasr iata iatc iati ibac ibar ibas ibat ibca ibcs ibia ibis ibra ibrc ibri ibsa ibss ibtb ibtc ibts icaa icab icac icai icar icas icat icbc icbs icca iccb iccc icci iccr iccs icct icis icra icrc icrr icrs icrt icsa icsb icsc icsi icsr icss icst icta icts iiac iias iica iiii iiis iiit iira iirc iirs iisc iisi iisr iist iita iitr iitt irac irai irar iras irca ircc ircs iri-