-vac a-ak aaaa aaac aaad aaav aaca aacc aacd aack aacu aacv aada aadc aadu aaka aaku aava acaa acac acad acca accc accd accu acda acdc ackd acu- acvv adaa adac adad adak adcc adda addc addd addu adua aduk akaa akca akka akku akua auaa auca audc avcc avda avva c-cd caaa caac cac- caca cacc cack cada cadc cadd cadu caka cauc cauk cava cavu ccaa ccac ccad ccca cccc cccu cccv ccdc ccuc cdaa cdac cdad cdda cdvd ckac ckck ckcv ckdu cuau cuca cucc cuck cuda cuk- cuka cvac cvca cvcc daad daau daca dada dadu daka daku daud dauk dava dcca dccc dccu dccv dcvd dddd dkdc duaa duad duca duck duda dudd dudu duka duku duva dvda kaaa kaak kacc kacd kacu kacv kad- kada kadd kadu kadv kaka kakc kakk kaku kau- kauc kaud kauk kava kavu kavv kcaa kcac kcad kcau kcav kcca kccc kccd kcck kccu kccv kcda kcdc kcdd kcdu kcdv kckc kckk kckv kcua kcuk kcvd kcvk kcvu kcvv kdaa kdac kdad kdak kdav kdca kdcc kdcd kddc kddd kddk kdka kdkd kdkk kduc kduv kdva kdvv kkaa kkac kkcd kkck kkda kkdc kkdd kkdv kkkk kkua kkuu kkvu kkvv kuac kuau kuca kucc kucd kucv kuda kudd kudu kuka kukk kuku kuuk kuuu kuva kvak kvcc kvck kvcu kvcv kvda kvdu kvuu kvvv uaca uaua ucad ucak ucav ucca ucdc ucdd ucka ucua udaa udad udau udca uduk ukcc uuuu uv-a uv-c uvaa uvac uvda uvvu vaad vaca vack vada vadu vaka vaud vava vdcc vuca vuda vudu vuka vuku vvvv