-vac a-ak aaaa aaac aaad aaae aaav aaca aacc aacd aace aack aacv aada aadc aade aaea aaec aaev aaka aake aava acaa acac acad acae acca accc accd acce acda acdc acde ace- acea acec aced acek acev ackd acke acvv adaa adac adad adae adak adcc adda addc addd adde adea adee aeac aede aeka aeva akaa akae akca aked akee akka avcc avce avda avea avec avva c-cd caaa caac cac- caca cacc cace cack cada cadc cadd cade caec caka cake cava cave ccaa ccac ccad ccca cccc cccv ccdc cced ccee cd-e cdaa cdac cdad cdda cdec cdvd ceac cead cec- ceca cece ceda cedd cede ceec ceke ceva ckac ckck ckcv cvac cvca cvcc daad daae daca dace dada dade daka dake dava dave dcca dccc dccv dcvd dddd deac dead deae deak dec- deca decc decd dece deck deda dedd dede deed deek deev dek- deka deke deva deve dkdc dvda eaca eacc eada eadd eaec eave ecaa ecac ecad ecca eccc ecce ecdc eced ecka edac edad edca edda eddc edde ede- edea edve eeca eede eeea eeee eeka eeke eeva eka- eked ekek ekka evac evae evea evvk kaaa kaak kacc kacd kace kacv kad- kada kadd kade kadv kaka kakc kake kakk kava kave kavv kcaa kcac kcad kcav kcca kccc kccd kcck kccv kcda kcdc kcdd kcdv kcea kcec kced kcee kckc kckk kckv kcvd kcvk kcvv kdaa kdac kdad kdae kdak kdav kdca kdcc kdcd kdce kddc kddd kddk kdec kdka kdkd kdkk kdva kdvv kea- kead keak keca keck keda kedc kedd kede keed keek keka kekc keke keva keve kkaa kkac kkcd kkck kkda kkdc kkdd kkdv kkea kked kkkk kkvv kvak kvcc kvce kvck kvcv kvda kvea kvec kvvv vaad vaca vace vack vada vade vaka vake vava vdcc vdec veak vecc veck veda vedc vede veka veke veve vvvv