a-ii aaaa aaab aaac aaad aaai aaar aaas aaba aabb aabc aabd aabi aabt aaca aacb aacc aacd aaci aacr aacs aact aada aadc aadi aads aadt aaib aaic aaii aais aara aarc aard aari aars aart aasa aasc aasd aasi aass aast aata aatc aatt abaa abab abac abad abai abar abas abat abb- abba abbb abbi abbr abbs abbt abca abcb abcc abcd abci abcr abcs abct abda abdi abia abib abic abid abir abis abit abra abrc abri abrs abs- absa absd absi abss abta abts ac-t acaa acab acac acad acai acar acas acat acba acca accc accd acci accs acct acda acdb acdc acdi acds acdt aci- acia acic acid acir acis acr- acra acrc acri acrr acrs acsa acsc acsd acsi acss acst acta actc acti acts actt adaa adab adac adad adai adar adas adat adba adbc adbi adcc adci adcs adda addc addd addi addr adds adia adib adic adir adis adit adra adrs adsa adsi adsr adss adst adta adts aiai aias aiba aica aicc aicd aicr aics aida aidb aidc aidi aidr aids aidt aiia aiib aiic aiid aiir aira aird airi airs airt aisa aisb aisd aisi aisr aist aita aiti aitr aits aitt arab arac arad arai arar aras arat arba arbi arbs arc- arca arci arcs arct arda ardc ardi ards aria arib arid arii aris arit arr- arra arrc arri arrr arrs arrt ars- arsa arsc arsd arsi arst arta artc arti artr arts asaa asab asac asad asai asar asas asat asba asc- asca ascb ascc asci ascr asct asda asds asia asic asii asir asis asit asra asrc asrs assa assc assd assi assr asss asst asta astb astc asti astr asts at-t ataa atab atac atad atai atar atas atat atbs atca atcc atcr atcs atdi atdt atia atic atid atis atit atra atrc atri atsb atsc atsi atst atta atti attr atts ba-i baaa baad baar baas baat baba babb babi babr babs bac- baca bacc baci bacs bact bada badb badd badi badr bads baia baib baic baid bair bais bait bar- bara barb barc bard bari barr bars bart basa basc basi bass bast bata batc bati bats batt bbad bbas bbbb bbbs bbci bbdd bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bcci bccs bcda bcds bcia bcis bcit bcra bcrs bcsa bcsc bcss bctc bcts bd-r bdbc bddc bdii bdsd biad biar bias biat biba bibb bibi bibs bica bicc bici bics bida bidi bidr bids biis bira birb bird biri birr birs birt bis- bisa bisc bisd biss bist bita bitc bitd bits bitt brab brac brad brai bras brat brca brcb brda brds brdt bria bric brid bris brit brrr brrs brsb brsr brst brtc bsaa bsac bsas bsat bsbd bsci bscs bsic bsra bsrd bssc bssd bsts btaa btcc btcs btdt btrc btrt btss bttb c-cd caaa caab caac caas caat caba cabi cabs cac- caca cacc caci cacr cada cadc cadd cadi cadr cads caia caib caic caid cair cais cait cara carb carc card cari carr cars cart casa casb casc casd casi casr cass cast cat- cata catb catc catd cati cats catt cbac cbar cbat cbbc cbbs cbca cbcc cbcr cbcs cbct cbdb cbdc cbdi cbds cbia cbid cbir cbit cbrd cbrt cbsa cbsc cbsi cbta cbtc ccaa ccab ccac ccad ccai ccar ccas ccat ccba ccbc ccca cccb cccc ccci cccs ccdc ccdi ccdr ccds ccic ccid ccii ccir ccis ccra ccrc ccri ccrs ccrt ccsa ccsd ccsi ccss ccst cctb cctc cctt cd-r cdaa cdac cdad cdai cdba cdcs cdda cddb cddr cdic cdii cdis cdrs cdss ciaa ciar cias ciat ciba cibc cibi cica cicc cici cicr cics cict cida cidc cidi cidr cids cidt ciia ciid ciii ciis ciit cira cirb circ ciri cirr cirs cirt cis- cisa cisc cisd cisr ciss cist cita citb citi cits citt crab crac crai crar cras crat crbc crca crcc crcr crda crdc cria crib cric cris crit crrt crsa crss crst crtc crts csaa csab csac csar csas csat cscb cscc cscd csci cscr cscs csda csdb csdr csia csib csid csir csis csit csra csrc csrd csrs cssa cssd cssr csta cstc cstd cstr csts ctab ctba ctbi ctbs ctca ctia ctic ctrc ctrs ctsa ctsc ctss ctta ctts daab daad daar daas daba dabb dabs dabt daca daci dacs dact dada dadi dads daia daid dair dais dait dara darb darc dard dari darr dars dart dasa dasb dasc dasd dasi dass dast data dati datr dats datt dbar dbas dbcc dbcs dbit dbrs dbsa dbss dbtt dcas dcbc dcca dccb dccc dcci dccs dcct dcdb dcds dcia dcii dcis dcra dcsc dcss dctc dcts dddd ddrc ddss ddts dia- diab diac diad diar dias diat diba dibb dibs dica dici dict dida didi dids diii diis dira dird dirr dirs dirt dis- disa disc disd disi diss dist dita diti dits ditt draa drab drac drad drar dras drat drba drbc drca drda drib dric drit drra drrs drsa dsac dsba dsbc dscc dscr dscs dsda dsdr dsrc dsri dsrr dssa dssc dssi dsst dstc dsts dtaa dtac dtcc dtss iaaa iaac iaai iaas iaat iaba iaca iacc iacr iacs iact iadb iadc iadt iaia iais iara iarc iars iart iasa iasc iasi iasr iata iatc iati ibac ibad ibar ibas ibat ibca ibcs ibia ibid ibis ibra ibrc ibrd ibri ibsa ibss ibtb ibtc ibts icaa icab icac icad icai icar icas icat icbc icbd icbs icca iccb iccc icci iccr iccs icct icdc icdd icis icra icrc icrr icrs icrt icsa icsb icsc icsd icsi icsr icss icst icta icts idad idar idas idat idca idcr idda idia idic idid idir idis idra idrc idsa idsc idss idta idts iiac iias iica iicd iida iiii iiis iiit iira iirc iirs iisc iisd iisi iisr iist iita iitr iitt irac irad irai irar iras irca ircc ircd ircs irda irdc irds iri- iria iric