c-cd cccc cccu ccdc cced ccee cctc cctt ccuc ccut cd-e cdec cdex cec- cece cect cedd cede cedt cedu ceec cet- cete ceux cexe ctec cucc cuce cude cued cut- cutc cute cutt cxxx dccc dcct dccu dctc dcxx dddd dec- decc decd dece dect dedd dede dedu deed deet dete deue deut deux dex- dexe dext dtcc dted dttx dtxt duce duct dudd dude dudu duet dute duut dxcc dxdc dxec dxed dxue dxxx eccc ecce ecct ecdc eced ect- ectc eddc edde ede- edex educ eede eedu eeee eetc eete eetu eext etcc etec etee ette ettu etux eucd eude exec exed exte tccc tccu tcdd tctc tect tedd tede tedx teec teed teet tete tett tetu tetx teut text tttt tucc tude tudu tuet tute tutt tutu ucdc ucdd ucut udet uext utec uttu uuuu uxue x-ed xdcc xexe xuxu xxxx