a-ii aaaa aaab aaac aaai aaam aaap aaar aaba aabb aabc aabi aabm aabp aaca aacb aacc aaci aacm aacp aacr aaib aaic aaii aama aamb aamc aami aamp aamr aapa aapc aapi aapm aara aarc aari aarm aarp abaa abab abac abai abam abap abar abb- abba abbb abbi abbr abca abcb abcc abci abcp abcr abia abib abic abim abir abma abmb abmc abpa abpc abpi abpm abpp abpr abra abrc abri acaa acab acac acai acap acar acba acca accc acci accm accp aci- acia acic acim acip acir acma acmc acmi acmp acpa acpi acpm acpr acr- acra acrc acri acrm acrr aiai aiba aica aicc aicp aicr aiia aiib aiic aiir aimc aimi aimm aimp aipa aipi aira airi airp amaa amac amai amam amap amar amb- amba ambi ambr amca amcc amia amib amic amii amip amir amm- amma ammi ampa ampc ampm amra amrc amri apac apai apam apap apar apba apbr apca apcb apcc apcm apcr api- apia apic apim apip apma appa appc appr apra aprc apri arab arac arai aram arap arar arba arbi arc- arca arci arcm aria arib arii arim arip arma armc armi armm arpa arpi 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 bamp bapa bapc bapi bapp bar- bara barb barc bari barm barr bbbb bbci bbcm bbpr bbrc bcaa bcam bcap bcar bcbc bcbp bcca bccc bcci bccm bcia bcma bcmp bcpp bcra biap biar biba bibb bibi bica bicc bici bima bipa bipm bipp bira birb biri birr bmaa bmci bmic bmir bmmi bpai bpcp bpmc bprc brab brac brai bram brca brcb bria bric brim brmc brrm brrr caaa caab caac caam caap caba cabi cac- caca cacc caci cacm cacr caia caib caic caim caip cair cama camb camc cami camm camp capa capb capc capi capm capp cara carb carc cari carm carp carr cbac cbar cbbc cbca cbcc cbcm cbcp cbcr cbia cbir cbpc cbpp cbrm ccaa ccab ccac ccai ccam ccap ccar ccba ccbc ccca cccb cccc ccci cccm cccp ccic ccii ccim ccip ccir ccma ccmb ccmc ccmm ccmp ccpa ccpm ccpp ccpr ccra ccrc ccri ccrp ciaa ciam ciar ciba cibc cibi cica cicc cici cicr ciia ciii cima cimb cimi cimm cimp cimr cipa cipp cira cirb circ ciri cirm cirr cmaa cmac cmap cmba cmbc cmcc cmii cmip cmir cmmb cmmc cmmi cmpa cmpc cmpi cmpp cmra cmri cmrr cpaa cpac cpam cpap cpbc cpca cpcm cpia cpic cpim cpma cpmp cppa cppm cpri cprm crab crac crai cram crap crar crbc crca crcc crcr cria crib cric crim crip crmb crmp crpc iaaa iaac iaai iaap iaba iabm iaca iacc iacp iacr iaia iaim iama iamb iami iamp iapa iapm iapp iara iarc ibac ibar ibbm ibca ibia ibim ibma ibmp ibra ibrc ibri icaa icab icac icai icam icap icar icbc icbm icbp icca iccb iccc icci iccp iccr icma icmc icmi icmm icmp icpa icpc icpm icra icrc icrm icrr iiac iica iiii iimc iipa iipm iira iirc imac imai imam imar imba imbi imca imcb imci imir imma immi impa impi impr imra imrc imri imrr ipac ipam ipba ipca ipcc ipmc ipmi ipmp ippa ippc ippr ipri irac irai iram irap irar irbm irbp irca ircc iri- iria iric irip irma irmc irpa irpc irra irrc irri ma-i maaa maac maai maam maap maar maba mabi mac- maca macb macc maci macp macr maia maib maii maim mair mama mamc mami mamp mapa mapi mapp mapr mar- mara marc mari marm marr mbac mbam mbba mbca mbci mbia mbim mcaa mcac mcap mcba mcbc mcbi mcca mccc mcci mcia mcic mcii mcmc mcmi mcpa mcpb mcpc mcpp mcrc mcri miaa miab miac miai miam mibc mica micc mici micr miii mim- mima mimi mimp mipi mipr mira mirc miri mirr mmaa mmab mmac mmai mmap mmar mmcc mmci mmcm mmic mmii mmmc mmmm mmpa mmpc mmpi mmpr mmrc mmrp mpaa mpac mpai mpca mpcc mpci mpic mpir mpmc mppc mppp mpri mprp mr-c mrac mrap mrbb mrbm mrca mrcb mrcc mrcp mria mrmc mrpa mrrc paap paar paba paca paci paia paib paip pair pam- pama pamb pami pamm pamp papa papb papi papp papr par- para parc pari parm parp parr pbac pbar pbcc pbmr pbpa pcaa pcap pcba pcbc pcbm pcca pccc pcia pcim pcip pcmb pcpb pcpm pcpp pcra pcrc piai pibb pibi pica picc pici picr piia piip pima pimi pimp pipa pipi pipp pira pirc piri pirr pmaa pmac pmbr pmcc pmip pmma pmmp pmpm pmrc ppac ppap ppar ppcc ppci ppcm ppib ppic pppa pppp pprc pprm prai pram prar prbc prca prcc prcp pri- pria prii prim prmc prri prrm raab raam raba rabb rabi rac- raca racc raci raia raic raii raim raip rair rama ramb rami ramm ramp rapa rapc rapi rapm rapp rara rarb rari rbbb rbbr rcac rcbc rccb rccc rcic rcmp rcpi riaa riab riai riam rib- riba rica ricc riia rima rimi rimm ripa ripi ripp ripr riri rmrp rpca rpii rrmc rrmp rrrr