-ana -nik a-ak a-ii aaaa aaab aaac aaaf aaai aaan aaba aabb aabc aabi aaca aacb aacc aacf aaci aack aacn aafa aafb aafc aaff aafi aaib aaic aaii aain aaka aana aani abaa abab abac abaf abai abak aban abb- abba abbb abbi abca abcb abcc abcf abci abcn abff abia abib abic abin acaa acab acac acai acan acba acca accc accf acci acfc acfi aci- acia acic acif acin afaa afak afan afca afcb afcc afci affa affc affi afia afib afif afik afin afka aiai aian aiba aibn aica aicc aicf aiff aiia aiib aiic aiin aika aiki aina ainc aini akaa akai akan akca akia akif akik akin akka akki akna ana- anaa anab anac anai anak anan anba anbb anbi anca ancc anfa ania anib anic anif anik anin ank- anka anki anna annb anni ba-i baaa baaf baak baan baba babb babi bac- baca bacc baci back bacn bafc baff baia baib baic baik bain bak- baka baki bana banc bani bank bann bbbb bbci bbfc bbfn bbin bcaa bcbc bcca bccc bcci bcfc bcia bfca biaf biak bian biba bibb bibi bica bicc bici bick bifa biff bifi biin bin- bina binc bini bink binn bnai bnib bnin caaa caab caac caaf caan caba cabf cabi cac- caca cacc caci cack cafa cafb cafc caff caia caib caic caik cain caka cana canc cani cank cann cbac cbbc cbca cbcc cbcn cbfb cbfc cbia cbka cbkn cbna ccaa ccab ccac ccaf ccai ccba ccbc ccbn ccca cccb cccc cccf ccci ccfa ccfc ccff ccfi ccic ccii ccna ccnb ccnc ccnf ccni cfaa cfab cfac cfbc cfbn cfca cfcb cfcf cfcn cffb cfia cfnb cfni ciaa ciak cian ciba cibc cibi cica cicc cici cifa ciff ciia ciii cika cin- cina cinc cinf cini cink ckac ckan ckbc ckbi ckck ckfi ckin cknb cknc cnaa cnac cnbc cnci cnfa cnib cnic cnki cnna f--k faaa faac faan faba fabi faca facc fack fafa fafc faff fafi faik fain faki fana fanc fani fank fcab fcba fcca fccf fcic fcii ffcc ffff ffii fiaa fiac fiaf fian fiba fica ficc fick fifa fifc fiff fifi fiii fika fiki fina fini fink finn fkab fnac fnci iaaa iaac iaai iaba iaca iacc iafc iaff iaia iain iana ibac iban ibca ibfi ibia icaa icab icac icaf icai ican icbc icca iccb iccc iccf icci iccn icfb icnb icnc ifaa ifac ifan ifbb ific ifni ifnk iiac iica iifa iiii ikin ikki inab inac inaf inai inan inba inca incb inci infa infi inia inka inki inna inni k-ci kaaa kaab kaaf kaai kaak kaan kaba kabb kabc kabf kabi kacb kacc kaci kafa kafc kaff kafi kafn kaia kaib kaic kaif kaii kaik kain kaka kakc kaki kakk kakn kana kanb kanf kani kann kbaa kbab kbac kbai kbak kbba kbbb kbbc kbbf kbbi kbbk kbca kbcb kbci kbck kbfb kbfc kbff kbfi kbfk kbia kbib kbic kbif kbik kbkb kbkf kbkk kbna kbnn kcaa kcab kcac kcai kcba kcbc kcbf kcbi kcbk kcca kccb kccc kcci kcck kcfa kcfb kcfc kcfi kcfn kcic kcif kcii kcin kckc kckf kckk kckn kcnb kcni kfab kfac kfai kfan kfbc kfbk kfbn kfcf kffa kffb kfff kffk kffn kfia kfin kfka kfkb kfna kfnc kfnf kfnk kfnn kiab kiac kiai kian kiba kibb kibc kibi kica kicb kicc kick kifa kiff kiia kiic kiii kiik kika kikc kikf kiki kikk kin- kina kinb kinc kinf kini kink kinn kkaa kkac kkai kkan kkba kkbb kkbi kkbn kkcb kkci kkck kkcn kkfi kkfn kkia kkic kkik kkin kkkk kknb kkni kknn knaa knab knac knaf knai knan knba knbb knbc knbn knca kncb knci knck kncn knfa knia knib knic knif knik knin knki knkk knnb knnk n-ii naaa naab naac naai naan naba nabc nabf nabi nabk naca nacc nacf naci nack nafa nafc naff nafi naia naib naic naif naik nain naka nan- nana nanb nani nann nbaa nbaf nbak nbbc nbca nbcc nbci nbfa nbfc nbia nbic ncaa ncac ncba ncbc ncbi ncca nccc nccf ncci nccn ncfc ncia ncna ncnc nfaa nfff nfia nfib nfic niab niac niaf niak nian nibi nica nicc nicf nici nick nifa nifc niff niia nika nikc niki nina nini nkfc nkia nnnn