-ic a-a a-b a-c a-i a-t aaa aab aac aai aao aas aat ab- aba abb abc abi abo abs abt ac- aca acb acc aci aco acs act ai- aia aib aic aii aio ais ait aoa aob aoc aoi aoo aos aot as- asa asb asc asi aso ass ast at- ata atb atc ati ato ats att baa bab bac bai bao bas bat bba bbb bbc bbi bbo bbs bbt bca bcb bcc bci bco bcs bct bi- bia bib bic bii bio bis bit boa bob boc boi boo bos bot bsa bsb bsc bsi bso bss bst bta btb btc bti bto bts btt c-- caa cab cac cai cao cas cat cba cbb cbc cbi cbo cbs cbt cca ccb ccc cci cco ccs cct ci- cia cib cic cii cio cis cit co- coa cob coc coi coo cos cot csa csb csc csi cso css cst cta ctb ctc cti cto cts ctt ia- iaa iab iac iai iao ias iat iba ibb ibc ibi ibo ibs ibt ica icb icc ici ico ics ict iia iib iic iii iio iis iit io- ioa iob ioc ioi ioo ios iot is- isa isb isc isi iso iss ist ita itb itc iti ito its itt o-i oaa oab oac oai oao oas oat ob- oba obb obc obi obo obs obt oc- oca ocb occ oci oco ocs oct oia oib oic oii oio ois oit oo- ooa oob ooc ooi ooo oos oot os- osa osb osc osi oso oss ost ot- ota otb otc oti oto ots ott saa sab sac sai sao sas sat sba sbb sbc sbi sbo sbs sbt sca scb scc sci sco scs sct sia sib sic sii sio sis sit soa sob soc soi soo sos sot ss- ssa ssb ssc ssi sso sss sst sta stb stc sti sto sts stt taa tab tac tai tao tas tat tba tbb tbc tbi tbo tbs tbt tca tcb tcc tci tco tcs tct tia tib tic tii tio tis tit to- toa tob toc toi too tos tot tsa tsb tsc tsi tso tss tst tta ttb ttc tti tto tts ttt

a-ii aaaa aaab aaac aaai aaas aaba aabb aabc aabi aabt aaca aacb aacc aaci aaco aacs aact aaib aaic aaii aais aaoo aasa aasc aasi aass aast aata aatc aatt abaa abab abac abai abas abat abb- abba abbb abbi abbo abbs abbt abca abcb abcc abci abcs abct abia abib abic abis abit aboa abob aboo abos abot abs- absa absi abss abta abts ac-t acaa acab acac acai acas acat acba acca accc acci acco accs acct aci- acia acic acis acoa acos acot acsa acsc acsi acss acst acta actc acti acto acts actt aiai aias aiba aibo aica aicc aics aiia aiib aiic aioc aioi aisa aisb aisi aiso aist aita aiti aits aitt aoba aoca aocs aoss aotc asaa asab asac asai asao asas asat asba asbo asc- asca ascb ascc asci asco asct asia asic asii asio asis asit asob asoc asoi asos asot assa assc assi asso asss asst asta astb astc asti asto asts at-t ataa atab atac atai atas atat atbs atca atcc atco atcs atia atic atis atit atob atoc atoi atos atot atsb atsc atsi atst atta atti atto atts ba-i baaa baas baat baba babb babi babo babs bac- baca bacc baci baco bacs bact baia baib baic baio bais bait baos basa basc basi baso bass bast bata batc bati bato bats batt bbas bbbb bbbs bbci bcaa bcas bcat bcbc bcbs bcca bccc bcci bccs bcia bcis bcit bcos bcsa bcsc bcss bctc bcts biao bias biat biba bibb bibi bibo bibs bica bicc bici bico bics biis bio- bioc bioi bios biot bis- bisa bisc biso biss bist bita bitc bito bits bitt boab boac boai boas boat boba bobb bobi bobo bobs boca boco bocs boi- boii bois boit boob booc boos boot bosa bosc bosi boso boss bost bota botb boti boto bots bott bsaa bsac bsas bsat bsci bscs bsic bsos bssc bsts btaa btcc btcs btob btss bttb c-bo caaa caab caac caas caat caba cabi cabo cabs cac- caca cacc caci caco caia caib caic caio cais cait caoi caos casa casb casc casi caso cass cast cat- cata catb catc cati cato cats catt cbac cbat cbbc cbbs cbca cbcc cbcs cbct cbia cbit cbot cbsa cbsc cbsi cbta cbtc ccaa ccab ccac ccai ccas ccat ccba ccbc ccca cccb cccc ccci cccs ccic ccii ccis ccob ccoc ccsa ccsi ccss ccst cctb cctc cctt ciaa ciao cias ciat ciba cibc cibi cibo cica cicc cici cico cics cict ciia ciii ciis ciit ciob cios cis- cisa cisc ciss cist cita citb citi cito cits citt coai coas coat coba cobb cobi cobo cobs coca coco coct coia cois coit coob coos coot cosa cosc cosi coso coss cost cota cotb cotc coti coto cots cott csaa csab csac csao csas csat cscb cscc csci csco cscs csia csib csio csis csit csob csos csot cssa csta cstc csto csts ctab ctba ctbi ctbs ctca ctia ctic ctos ctot ctsa ctsc ctss ctta ctts iaaa iaac iaai iaas iaat iaba iaca iacc iacs iact iaia iais iasa iasc iasi iaso iata iatc iati ibac ibas ibat ibca ibcs ibia ibis ibos ibot ibsa ibss ibtb ibtc ibts icaa icab icac icai icao icas icat icbc icbs icca iccb iccc icci icco iccs icct icis icoc icos icsa icsb icsc icsi icss icst icta icts iiac iias iica iiii iiio iiis iiit iioi iioo iios iisc iisi iist iita iitt ioba iobi ioci ioii ioio ioit iooi iooo ioos ioso iota ioto is-a isac isai isao isas isat isba isbt isca iscc isci isco iscs isct isia isic isis isit iso- isoc isos issa issc issi isso isss ista istc isti isto ists itaa itac itai itas itat itbs itcs