-vac aaaa aaac aaad aaae aaav aaca aacc aacd aace aacu aacv aada aadc aade aadu aaea aaec aaev aava acaa acac acad acae acca accc accd acce accu acda acdc acde ace- acea acec aced acev acu- acue acvv adaa adac adad adae adcc adda addc addd adde addu adea adee adua adue aeac aede aeva auaa auca auce audc aude auve avcc avce avda avea avec aveu avva c-cd caaa caac cac- caca cacc cace cada cadc cadd cade cadu caec caeu cauc cava cave cavu ccaa ccac ccad ccca cccc cccu cccv ccdc cced ccee ccuc cd-e cdaa cdac cdad cdda cdec cdvd ceac cead cec- ceca cece ceda cedd cede cedu ceec ceva cuau cuca cucc cuce cuda cude cued cuve cvac cvca cvcc daad daae daau daca dace dada dade dadu daeu daud daue dava dave dcca dccc dccu dccv dcvd dddd deac dead deae deau dec- deca decc decd dece deda dedd dede dedu deed deev deua deue deva deve duaa duad duca duce duda dudd dude dudu duva duve dvda eaca eacc eada eadd eaec eave ecaa ecac ecad ecca eccc ecce ecdc eced ecua edac edad edca edda eddc edde ede- edea educ edve eeca eede eedu eeea eeee eeva eucd eude evac evae evea uaca uaua ucad ucav ucca ucdc ucdd ucea ucua udaa udad udau udca udea udev ueda uuuu uv-a uv-c uvaa uvac uvae uvda uvea uvvu vaad vaca vace vada vade vadu vaud vava vdcc vdec veau vecc veda vedc vede veve vuca vuda vudu vvvv