a-ii aaaa aaab aaac aaai aaam aaar aaba aabb aabc aabi aabm aaca aacb aacc aaci aacm aacr aaib aaic aaii aama aamb aamc aami aamr aara aarc aari aarm abaa abab abac abai abam abar abb- abba abbb abbi abbr abca abcb abcc abci abcr abia abib abic abim abir abma abmb abmc abra abrc abri acaa acab acac acai acar acba acca accc acci accm aci- acia acic acim acir acma acmc acmi acr- acra acrc acri acrm acrr aiai aiba aica aicc aicr aiia aiib aiic aiir aimc aimi aimm aira airi amaa amac amai amam amar amb- amba ambi ambr amca amcc amia amib amic amii amir amm- amma ammi amra amrc amri arab arac arai aram arar arba arbi arc- arca arci arcm aria arib arii arim arma armc armi armm arr- arra arrc arri arrr ba-i baaa baam baar baba babb babi babm babr bac- baca bacc baci baia baib baic bair bama bamb bamc bami bamm bar- bara barb barc bari barm barr bbbb bbci bbcm bbrc bcaa bcam bcar bcbc bcca bccc bcci bccm bcia bcma bcra biar biba bibb bibi bica bicc bici bima bira birb biri birr bmaa bmci bmic bmir bmmi brab brac brai bram brca brcb bria bric brim brmc brrm brrr caaa caab caac caam caba cabi cac- caca cacc caci cacm cacr caia caib caic caim cair cama camb camc cami camm cara carb carc cari carm carr cbac cbar cbbc cbca cbcc cbcm cbcr cbia cbir cbrm ccaa ccab ccac ccai ccam ccar ccba ccbc ccca cccb cccc ccci cccm ccic ccii ccim ccir ccma ccmb ccmc ccmm ccra ccrc ccri ciaa ciam ciar ciba cibc cibi cica cicc cici cicr ciia ciii cima cimb cimi cimm cimr cira cirb circ ciri cirm cirr cmaa cmac cmba cmbc cmcc cmii cmir cmmb cmmc cmmi cmra cmri cmrr crab crac crai cram crar crbc crca crcc crcr cria crib cric crim crmb iaaa iaac iaai iaba iabm iaca iacc iacr iaia iaim iama iamb iami iara iarc ibac ibar ibbm ibca ibia ibim ibma ibra ibrc ibri icaa icab icac icai icam icar icbc icbm icca iccb iccc icci iccr icma icmc icmi icmm icra icrc icrm icrr iiac iica iiii iimc iira iirc imac imai imam imar imba imbi imca imcb imci imir imma immi imra imrc imri imrr irac irai iram irar irbm irca ircc iri- iria iric irma irmc irra irrc irri ma-i maaa maac maai maam maar maba mabi mac- maca macb macc maci macr maia maib maii maim mair mama mamc mami mar- mara marc mari marm marr mbac mbam mbba mbca mbci mbia mbim mcaa mcac mcba mcbc mcbi mcca mccc mcci mcia mcic mcii mcmc mcmi mcrc mcri miaa miab miac miai miam mibc mica micc mici micr miii mim- mima mimi mira mirc miri mirr mmaa mmab mmac mmai mmar mmcc mmci mmcm mmic mmii mmmc mmmm mmrc mr-c mrac mrbb mrbm mrca mrcb mrcc mria mrmc mrrc raab raam raba rabb rabi rac- raca racc raci raia raic raii raim rair rama ramb rami ramm rara rarb rari rbbb rbbr rcac rcbc rccb rccc rcic riaa riab riai riam rib- riba rica ricc riia rima rimi rimm riri rrmc rrrr