c-cd cccc cccv ccdc ccdh cced ccee cche ccoc ccod ccvo cd-e cdec cdvd cec- cece ceco cedd cede cedo ceec cevo chce chch chec ched chee cheh chev choc chod choh choo chov chvo coce coch coco codd code coed coho cood cooh cove covo cvcc dccc dccv dche dcvd dddd ddoc dec- decc decd dece deco dedd dede dedo deed deev deve devo dhec dhed dhee dhod doce doch doco dod- dodd dode dodo dohc dood dove eccc ecce ecco ecdc eced eche echo eco- ecod eddc edde eddo ede- edeh edoc edod edve eede eeee eeoc ehcc ehdd eheh eocd eode evoe evoo hccc hcch hdoc hdod hech hedd hede hedo heed hehe heho heve hhhh hoce hoch hode hodh hoed hohe hoho hood hooe hove hvcc o-eo occc oce oced ocee oche oddd oded odeo odoh odoo oec- oecc oedo oeec ohcc ohed ohee ohho ohoh ooho oooh oooo ovde ovee ovhd ovo- ovod ovoo vche vdcc vdec vecc vech vedc vede vedo veho veoh veve vevo vhhh voce vode vodo voho vooc vvvv