-vac a-ak a-ii a-iv aaaa aaab aaac aaai aaav aaba aabb aabc aabi aaca aacb aacc aaci aack aacv aaib aaic aaii aaka aava abaa abab abac abai abak abb- abba abbb abbi abca abcb abcc abci abia abib abic abva acaa acab acac acai acba acca accc acci aci- acia acic acvv aiai aiba aica aicc aiia aiib aiic aika aiki aiva akaa akai akca akia akik akka akki avab avcc avia avic avik aviv avva ba-i baaa baak baba babb babi bac- baca bacc baci back baia baib baic baik bak- baka baki bava bavi bbbb bbci bcaa bcbc bcca bccc bcci bcia biak biba bibb bibi bica bicc bici bick bivi caaa caab caac caba cabi cac- caca cacc caci cack caia caib caic caik caka cava cavi cbac cbbc cbca cbcc cbia cbka cbva cbvb ccaa ccab ccac ccai ccba ccbc ccca cccb cccc ccci cccv ccic ccii cciv ccvi ciaa ciak ciba cibc cibi cica cicc cici ciia ciii cika civa civc ckac ckbc ckbi ckck ckcv cvac cvca cvcc cvii iaaa iaac iaai iaba iaca iacc iaia iava ibac ibca ibia icaa icab icac icai icbc icca iccb iccc icci iiac iica iiii ikki ivai ivak ivbv ivic k-ci kaaa kaab kaai kaak kaba kabb kabc kabi kacb kacc kaci kacv kaia kaib kaic kaii kaik kaka kakc kaki kakk kava kavb kavi kavv kbaa kbab kbac kbai kbak kbba kbbb kbbc kbbi kbbk kbca kbcb kbci kbck kbia kbib kbic kbik kbkb kbkk kbkv kbva kbvb kbvc kcaa kcab kcac kcai kcav kcba kcbc kcbi kcbk kcca kccb kccc kcci kcck kccv kcic kcii kciv kckc kckk kckv kcvi kcvk kcvv kiab kiac kiai kiba kibb kibc kibi kica kicb kicc kick kiia kiic kiii kiik kika kikc kiki kikk kiva kivi kkaa kkac kkai kkba kkbb kkbi kkcb kkci kkck kkia kkic kkik kkkk kkvv kvab kvak kvbc kvcb kvcc kvci kvck kvcv kvic kvik kviv kvvv vaca vack vaia vaik vaka vaki vava vbcc vcbi vcci vic- vica vici vick viii viik vika viki viva vivi vvvv