-vac aaaa aaac aaad aaae aaav aaca aacc aacd aace aacv aada aadc aade aaea aaec aaev aava acaa acac acad acae acca accc accd acce acda acdc acde ace- acea acec aced acev acvv adaa adac adad adae adcc adda addc addd adde adea adee aeac aede aeva avcc avce avda avea avec avva c-cd caaa caac cac- caca cacc cace cada cadc cadd cade caec 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 ceva cvac cvca cvcc daad daae daca dace dada dade dava dave dcca dccc dccv dcvd dddd deac dead deae dec- deca decc decd dece deda dedd dede deed deev deva deve dvda eaca eacc eada eadd eaec eave ecaa ecac ecad ecca eccc ecce ecdc eced edac edad edca edda eddc edde ede- edea edve eeca eede eeea eeee eeva evac evae evea vaad vaca vace vada vade vava vdcc vdec vecc veda vedc vede veve vvvv