-vac a-ha aaaa aaac aaad aaah aaar aaav aaca aacc aacd aach aacr aacv aada aadc aaha aara aarc aard aava acaa acac acad acar acca accc accd acch acda acdc acha achh achr acr- acra acrc acrr acrv acvv adaa adac adad adah adar adcc adda addc addd addr adha adhd adra ahac ahad ahah ahar ahha ahra ahrc ahrr ahva arac arad arah arar arc- arca arch arda ardc arh- arr- arra arrc arrh arrr arva avar avcc avda avra avva c-cd caaa caac caah cac- caca cacc cach cacr cada cadc cadd cadr caha cara carc card carr cava ccaa ccac ccad ccar ccca cccc cccv ccdc ccdh ccdr ccha cchr ccra ccrc cd-r cdaa cdac cdad cdda cddr cdvd chaa chac chad chah char chav chca chch chha chra chrc chrd chrr crac crar crca crcc crcr crda crdc cvac cvar cvca cvcc cvra cvrd cvrr daad daar daca dada daha dara darc dard darr dava dcca dccc dccv dcra dcvd dddd ddrc dhaa dhad dhar draa drac drad drar drca drda drra dvar dvda dvdr dvra haad haar hada hadh haha hara harc hard harh harr harv hava hcca hccc hcch hcdr hcrd hdca hdda hdra hhaa hhhh hrac hrad hrdc hrrc hvac hvar hvcc raad rac- raca racc rach racv rada radc radd radh radr raha rahr rara rava rcac rccc rcdc rcrd rcvr rdac rrad rrah rrrr rv-c rvca rvvh vaad vaar vaca vach vada vara vard varr vava vdcc vhhh vrac vrav vvvv