a-be a-ii aaaa aaab aaac aaae aaai aaam aaar aaba aabb aabc aabi aabm aaca aacb aacc aace aaci aacm aacr aaea aaec aaem aaib aaic aaii aama aamb aamc aame aami aamr aara aarc aare aari aarm abaa abab abac abae abai abam abar abb- abba abbb abbe abbi abbr abca abcb abcc abci abcr abec abee aber abia abib abic abie abim abir abma abmb abmc abra abrc abri acaa acab acac acae acai acar acba acca accc acce acci accm ace- acea acec acem acer aci- acia acic acie acim acir acma acmc acme acmi acr- acra acrc acre acri acrm acrr aeac aebi aecb aeci aeer aer- aera aerc aeri aiai aiba aica aicc aice aicr aiea aiee aiia aiib aiic aiir aimc aime aimi aimm aira aire airi amaa amac amae amai amam amar amb- amba ambe ambi ambr amca amcc amec amee amei amer amia amib amic amie amii amir amm- amma amme ammi amra amrc amri arab arac arae arai aram arar arba arbe arbi arc- arca arce arci arcm area arec aree arei arem aria arib arie arii arim arma armc arme armi armm arr- arra arrc arre arri arrr ba-i baaa baam baar baba babb babe babi babm babr bac- baca bacc bace baci baer baia baib baic baie bair bama bamb bamc bame bami bamm bar- bara barb barc bare bari barm barr bbbb bbci bbcm bbeb bbrc bcaa bcam bcar bcbc bcca bccc bcci bccm bcec bcer bcia bcie bcma bcra beam bear beba bebb bebe bebi beca beci beeb beem beer beia beic beim beir bema beme bera berc bere beri berm berr biar biba bibb bibe bibi bica bicc bice bici bieb bier bima bira birb bire biri birr bmaa bmce bmci bmic bmir bmmi brab brac brae brai bram brca brcb brce brea breb brec bree brei brem brer bria bric brie brim brmc brrm brrr caaa caab caac caam caba cabe cabi cac- caca cacc cace caci cacm cacr caec caei caem caer caia caib caic caim cair cama camb camc came cami camm cara carb carc care cari carm carr cbac cbar cbbc cbca cbcc cbce cbcm cbcr cbea cbec cbee cber cbia cbir cbme cbre cbrm ccaa ccab ccac ccai ccam ccar ccba ccbc ccca cccb cccc ccci cccm ccee ccic ccii ccim ccir ccma ccmb ccmc ccmm ccra ccrc ccre ccri ceac cear ceba cec- ceca cece ceci cecm ceeb ceec ceem ceim cema cemb ceme cemm cemr cer- cera cerc cere ceri ciaa ciam ciar ciba cibc cibe cibi cica cicc cici cicr ciee cier ciia ciii cima cimb cime cimi cimm cimr cira cirb circ cire ciri cirm cirr cmaa cmac cmba cmbc cmcc cmea cmec cmii cmir cmmb cmmc cmmi cmra cmri cmrr crab crac crai cram crar crbc crca crcc crce crcr cre- crea creb crec cree crei crem cria crib cric crie crim crmb eaba eaca eacc eaec eama eame eara earb eare ebac ebam ebba ebbc ebbr ebcc eber ebic ecaa ecac ecai ecam ecar ecbc ecbe ecca eccb eccc ecce ecci eccm ecem ecib ecim ecma ecmi ecra ecrc ecri ecrm ecrr eeca eeea eeee eera eerc eica eiec eiei eier eime eimi eira eire emac emae emam emar emba embe embi embr emcc emer emia emic emii emim emir emma emme emmi emra emre eram erba erbb erbe erca ercc erce ereb erec erei erem erer eria eric erie erim erma ermc erme erra errc erre i-be iaaa iaac iaai iaba iabm iaca iacc iacr iaea iaec iaia iaim iama iamb iame iami iara iarc iare ibac ibar ibbm ibca ibea ibec ibia ibie ibim ibma ibra ibrc ibri icaa icab icac icai icam icar icbc icbm icca iccb iccc icci iccr icea icec icee icem icer icma icmc icme icmi icmm icra icrc icre icrm icrr ieac iecc ieie iema ieme iera iere ieri iiac iica iiie iiii iimc iira iirc imac imai imam imar imba imbe imbi imca imcb imci imea imec imer imir imma imme immi imra imrc imre imri imrr irac irae irai iram irar irbe irbm irca ircc iree irem irer iri- iria iric irie irma irmc irra irrc irre irri ma-i maaa maac maai maam maar maba mabe mabi mac- maca macb macc mace maci macr maee maem maer maia maib maie maii maim mair mama mamc mame mami mar- mara marc mare 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 meai mear mebe mec- meca mecc mece mecr meem meer meic meir mema memc meme memr mer- mera merb merc mere meri merm miaa miab miac miai miam mibc mica micc mice mici micr miee miem mier miii mim- mima mime mimi mira mirc mire miri mirr mmaa mmab mmac mmai mmar mmcc mmci mmcm mmea mmic mmii mmmc mmmm mmrc mr-c mrac mrbb mrbm mrca mrcb mrcc mrce mreb mree mria mrmc mrrc raab raam raba rabb rabe rabi rac- raca racc race raci raec raer raia raic raie raii raim rair rama ramb rame rami ramm rara rarb rare rari rbbb rbbr rcac rcbc rccb rccc rcic rea- reac reae ream rear reba rebb rebe reca recc rece reci recm recr reeb reem reia reii reim reir rema reme remi rera rere reri riaa riab riai riam rib- riba ribe rica ricc rice riem rier riia rima rime rimi rimm rire riri rrmc rrrr