-vac a-ha aaaa aaac aaah aaar aaav aaca aacc aach aacr aacv aaha aara aarc aava acaa acac acar acca accc acch acha achh achr acr- acra acrc acrr acrv acvv ahac ahah ahar ahha ahra ahrc ahrr ahva arac arah arar arc- arca arch arh- arr- arra arrc arrh arrr arva avar avcc avra avva caaa caac caah cac- caca cacc cach cacr caha cara carc carr cava ccaa ccac ccar ccca cccc cccv ccha cchr ccra ccrc chaa chac chah char chav chca chch chha chra chrc chrr crac crar crca crcc crcr cvac cvar cvca cvcc cvra cvrr haar haha hara harc harh harr harv hava hcca hccc hcch hhaa hhhh hrac hrrc hvac hvar hvcc rac- raca racc rach racv raha rahr rara rava rcac rccc rcvr rrah rrrr rv-c rvca rvvh vaar vaca vach vara varr vava vhhh vrac vrav vvvv