a-ha aaaa aaac aaae aaah aaar aaca aacc aace aach aacr aaea aaec aaha aara aarc aare acaa acac acae acar acca accc acce acch ace- acea acec aceh acer acha ache achh achr acr- acra acrc acre acrr aeac aeer aer- aera aerc ahac ahah ahar ahha ahra ahrc ahre ahrr arac arae arah arar arc- arca arce arch area arec aree areh arh- arr- arra arrc arre arrh arrr caaa caac caah cac- caca cacc cace cach cacr caec caer caha cahe cara carc care carr ccaa ccac ccar ccca cccc ccee ccha cche cchr ccra ccrc ccre ceac cear cec- ceca cece ceec cer- cera cerc cere chaa chac chae chah char chca chce chch chea chec chee cheh cher chha chra chrc chrr crac crar crca crcc crce crcr cre- crea crec cree creh eaca eacc each eaec eara eare earh ecaa ecac ecar ecca eccc ecce echa eche ecra ecrc ecrr eeca eeea eeee eera eerc ehaa ehcc ehea eheh eher ehre erca ercc erce erch erec erer erhc erra errc erre haar hace haec haha hara harc hare harh harr hcca hccc hcch heah hear heca hech heer hehe hera herc here herr hhaa hhhh hrac hree hrrc rac- raca racc race rach raec raer raha rahe rahr rara rare rcac rccc rea- reac reae rear reca recc rece rech recr reha rehe rera rere rhae rhce rhea rhee rrah rrrr