-ana a-ii aaaa aaab aaac aaaf aaai aaan aaar aaba aabb aabc aabi aaca aacb aacc aacf aaci aacn aacr aafa aafb aafc aaff aafi aaib aaic aaii aain aana aani aara aarc aari abaa abab abac abaf abai aban abar abb- abba abbb abbi abbr abca abcb abcc abcf abci abcn abcr abff abia abib abic abin abir abra abrc abri acaa acab acac acai acan acar acba acca accc accf acci acfc acfi aci- acia acic acif acin acir acr- acra acrc acri acrr afaa afan afar afca afcb afcc afci affa affc affi afia afib afif afin afir afr- afra afrc afri aiai aian aiba aibn aica aicc aicf aicr aiff aiia aiib aiic aiin aiir aina ainc aini aira airi ana- anaa anab anac anai anan anar anba anbb anbi anca ancc anfa ania anib anic anif anin anir anna annb anni anrc anri arab arac araf arai aran arar arba arbi arc- arca arci arfa arfb arfc arff aria arib arif arii arin arna arni arr- arra arrc arri arrr ba-i baaa baaf baan baar baba babb babi babr bac- baca bacc baci bacn bafc baff baia baib baic bain bair bana banc bani bann banr bar- bara barb barc barf bari barn barr bbbb bbci bbfc bbfn bbin bbrc bcaa bcar bcbc bcca bccc bcci bcfc bcia bcra bfca biaf bian biar biba bibb bibi bica bicc bici bifa biff bifi biin bin- bina binc bini binn bira birb biri birn birr bnai bnib bnin bnrr brab brac braf brai bran brca brcb brfc bria bric brin brna brrr caaa caab caac caaf caan caba cabf cabi cac- caca cacc caci cacr cafa cafb cafc caff caia caib caic cain cair cana canc cani cann cara carb carc carf cari carn carr cbac cbar cbbc cbca cbcc cbcn cbcr cbfb cbfc cbia cbir cbna cbrn ccaa ccab ccac ccaf ccai ccar ccba ccbc ccbn ccca cccb cccc cccf ccci ccfa ccfc ccff ccfi ccic ccii ccir ccna ccnb ccnc ccnf ccni ccnr ccra ccrc ccrf ccri cfaa cfab cfac cfar cfbc cfbn cfbr cfca cfcb cfcf cfcn cffb cffr cfia cfnb cfni cfnr cfra cfrb cfrn ciaa cian ciar ciba cibc cibi cica cicc cici cicr cifa ciff ciia ciii cin- cina cinc cinf cini cira cirb circ ciri cirr cnaa cnac cnbc cnci cnfa cnib cnic cnna cnrc cnrr crab crac craf crai cran crar crbc crca crcc crcr crfc cria crib cric crif crin crna faaa faac faan faba fabi faca facc fafa fafc faff fafi fain fair fana fanc fani fara farb farc farr fbar fcab fcar fcba fcca fccf fcic fcii fcra ffar ffcc ffff ffii ffrr fiaa fiac fiaf fian fiar fiba fica ficc fifa fifc fiff fifi fiii fina fini finn fira firn fnac fnar fnci frab frac fran frbc frcc frcn frfc fria frib fric frin iaaa iaac iaai iaba iaca iacc iacr iafc iaff iaia iain iana iara iarc ibac iban ibar ibca ibfi ibia ibra ibrc ibri icaa icab icac icaf icai ican icar icbc icca iccb iccc iccf icci iccn iccr icfb icnb icnc icra icrc icrf icrr ifaa ifac ifan ifar ifbb ific ifni ifnr ifra ifrb ifrf ifri iiac iica iifa iiii iira iirc inab inac inaf inai inan inar inba inca incb inci incr infa infi inia inna inni innr inra inri irac iraf irai iran irar irca ircc iri- iria iric irin irna irra irrc irri n-ii naaa naab naac naai naan naar naba nabc nabf nabi naca nacc nacf naci nafa nafc naff nafi naia naib naic naif nain nair nan- nana nanb nani nann nara narc narf nari narn narr nbaa nbaf nbar nbbc nbca nbcc nbci nbfa nbfc nbia nbic ncaa ncac ncar ncba ncbc ncbi ncca nccc nccf ncci nccn nccr ncfc ncia ncna ncnc ncra ncrc ncri nfaa nfff nfia nfib nfic nfra niab niac niaf nian nibi nica nicc nicf nici nifa nifc niff niia niir nina nini nira nnnn nrab nrca nrfc nric nrna nrrc raab raaf raan raba rabb rabi rac- raca racc raci rafa rafc raff rafi raia raic raif raii rain rair rana ranc rani rann rara rarb rarf rari rbaf rbbb rbbr rcac rcaf rcbc rccb rccc rcfc rcic rcnr rffc rfic riaa riab riai rian rib- riba rica ricc rifa riff riia riif riin rina rinf rinn riri rnaf rnai rnbr rnin rrfc rrif rrna rrrr