a-ha aaaa aaac aaae aaaf aaah aaca aacc aace aacf aach aaco aaea aaec aafa aafc aaff aaha aaoe aaoo acaa acac acae acca accc acce accf acch acco ace- acea acec aceh acfc acfe acha ache achh acho acoa acoe acoh aeac aeaf afaa afao afca afcc afch afee affa affc affo afoa afoe afoo ahac ahah ahfa ahha ahoa ahoe aoah aoca aoce caaa caac caaf caah cac- caca cacc cace cach caco caec cafa cafc cafe caff caha cahe ccaa ccac ccaf ccca cccc cccf ccee ccfa ccfc ccff ccha cche ccoc ceac cec- ceca cece ceco ceec cef- cefa cefc cfaa cfac cfae cfao cfca cfcf cfco cfoa chaa chac chae chaf chah chao chca chce chch chea chec chee chef cheh chfa chfc chha choc choh choo coca coce coch coco cofc cofe coff coha coho coof cooh eaaf eaca eacc each eaec ecaa ecac ecao ecca eccc ecce ecco ecef ecfa ecfc echa eche echo eco- eeca eeea eeee eefa eefe eeoc efca efco efeo effa ehaa ehcc ehea eheh faaa faac faah faca facc face fach fafa fafc fafe faff fafo faha fcca fccf fcch feaf fece fech fefc fefe feff fefo feof feoh ffcc ffee ffff foaf foca foce foch foco fofo foof haaf hace haco haec hafe haff haha haho hcca hccc hcch hcfa hcfc heaf heah heca hech heef hefe hehe heho hfce hhaa hhhh hhof hoac hoca hoce hoch hofe hoff hoha hohe hoho hooe hoof o-eo oafc oafo oahe ocac occa occc oce ocee ocef ocfa ocha oche oec- oeca oecc oeec ofah off- offa offc offe offh offo ohcc ohee ohho ohoh ooaa ooff ooha ooho oooh oooo