a-ii aaaa aaab aaac aaai aaam aaar aaba aabb aabc aabi aabm aabt aaca aacb aacc aaci aacm aacr aact aaib aaic aaii aama aamb aamc aami aamr aara aarc aari aarm aart aata aatc aatt abaa abab abac abai abam abar abat abb- abba abbb abbi abbr abbt abca abcb abcc abci abcr abct abia abib abic abim abir abit abma abmb abmc abmt abra abrc abri abta ac-t acaa acab acac acai acar acat acba acca accc acci accm acct aci- acia acic acim acir acma acmc acmi acr- acra acrc acri acrm acrr acta actc acti actt aiai aiba aica aicc aicr aiia aiib aiic aiir aimc aimi aimm aira airi airt aita aiti aitr aitt amaa amac amai amam amar amat amb- amba ambi ambr amca amcc amia amib amic amii amir amit amm- amma ammi amra amrc amri amta amtc amti arab arac arai aram arar arat arba arbi arc- arca arci arcm arct aria arib arii arim arit arma armc armi armm armt arr- arra arrc arri arrr arrt arta artc arti artr at-t ataa atab atac atai atar atat atca atcc atcr atia atic atim atit atm- atma atra atrc atri atrm atta atti attr ba-i baaa baam baar baat baba babb babi babm babr bac- baca bacc baci bact baia baib baic bair bait bama bamb bamc bami bamm bar- bara barb barc bari barm barr bart bata batc bati batt bbbb bbci bbcm bbrc bcaa bcam bcar bcat bcbc bcca bccc bcci bccm bcia bcit bcma bcra bctc biar biat biba bibb bibi bica bicc bici bima bira birb biri birr birt bita bitc bitt bmaa bmci bmic bmir bmmi bmtc brab brac brai bram brat brca brcb bria bric brim brit brmc brrm brrr brtc btaa btcc btrc btrt bttb caaa caab caac caam caat caba cabi cac- caca cacc caci cacm cacr caia caib caic caim cair cait cama camb camc cami camm camt cara carb carc cari carm carr cart cat- cata catb catc cati catm catt cbac cbar cbat cbbc cbca cbcc cbcm cbcr cbct cbia cbir cbit cbrm cbrt cbta cbtc ccaa ccab ccac ccai ccam ccar ccat ccba ccbc ccca cccb cccc ccci cccm ccic ccii ccim ccir ccma ccmb ccmc ccmm ccra ccrc ccri ccrt cctb cctc cctt ciaa ciam ciar ciat ciba cibc cibi cica cicc cici cicr cict ciia ciii ciit cima cimb cimi cimm cimr cira cirb circ ciri cirm cirr cirt cita citb citi citt cmaa cmac cmba cmbc cmcc cmii cmir cmmb cmmc cmmi cmra cmri cmrr cmta cmtc crab crac crai cram crar crat crbc crca crcc crcr cria crib cric crim crit crmb crrt crtc crtm ctab ctba ctbi ctca ctia ctic ctma ctrc ctrm ctta iaaa iaac iaai iaat iaba iabm iaca iacc iacr iact iaia iaim iama iamb iami iamt iara iarc iart iata iatc iati ibac ibar ibat ibbm ibca ibia ibim ibma ibra ibrc ibri ibtb ibtc icaa icab icac icai icam icar icat icbc icbm icca iccb iccc icci iccr icct icma icmc icmi icmm icmt icra icrc icrm icrr icrt icta iiac iica iiii iiit iimc iira iirc iita iitm iitr iitt imac imai imam imar imat imba imbi imca imcb imci imir imit imma immi immt imra imrc imri imrr imta irac irai iram irar irbm irca ircc iri- iria iric irma irmc irra irrc irri irta irti itaa itac itai itam itar itat itcm itia itic itim itma itra itri itta ma-i maaa maac maai maam maar maat maba mabi mac- maca macb macc maci macr mact maia maib maii maim mair mait mama mamc mami mar- mara marc mari marm marr mart mata matc mati matr matt mbac mbam mbba mbca mbci mbia mbim mbta mcaa mcac mcat mcba mcbc mcbi mcca mccc mcci mcia mcic mcii mcit mcmc mcmi mcmt mcrc mcri mctc miaa miab miac miai miam miat mibc mica micc mici micr mict miii miit mim- mima mimi mira mirc miri mirr mirt mit- mita mitb mitc miti mitm mitt mmaa mmab mmac mmai mmar mmcc mmci mmcm mmct mmic mmii mmmc mmmm mmrc mr-c mrac mrbb mrbm mrca mrcb mrcc mria mrmc mrrc mrta mrtm mrtt mtaa mtab mtac mtbc mtcr mtrc mtrr mttr raab raam raat raba rabb rabi rac- raca racc raci ract raia raic raii raim rair rait rama ramb rami ramm rara rarb rari rata rati ratt rbbb rbbr rcac rcbc rccb rccc rcic rctc rcti riaa riab riai riam riat rib- riba rica ricc rict riia rima rimi rimm riri rita riti ritt rrat rrmc rrrr rtai rtca rtcc rtcm rtmc rtmi taa- taar taat taba tabb tabc tabi taca tacc taci tact taia taim tair tait tama tamc tami tamm tara tarb tarc tari tarm tarr tart tata tatb tati tatr tatt tbar tbca tbcb tbcc tbit tbrb tbta tcam tcca tccc tctc tiaa tiab tiar tiba tibi tica ticc tiit tima timi timm tira tirb tiri tirr tita titc titi titt tmaa tmac tmbc tmbr tmca tmcc tmcm tmtt traa trab trac trai tram trat trca trcc tri- tria trib tric trim trit trma trmb trmi trra trtc trtr ttab ttbb ttim ttma tttt