c-cd cccc cccf ccdc ccdf ccdr cced ccee ccfc ccfd ccff ccoc ccod ccrc ccre ccrf cd-e cd-r cddr cdec cdef cder cdfe cdre cec- cece ceco cedd cede cedo ceec cef- cefc ceor cer- cerc cerd cere cerf cero cfcf cfco cffr cfor cfre coce coco codd code coed cofc cofe coff cood coof cor- corc cord core corf coro corr crcc crce crcr crdc cre- crec cred cree creo crfc croc crod croe croo cror dccc dcfc dddd ddoc ddrc ddre dec- decc decd dece deco dedd dede dedo deed deef deer defe deff defo deor der- derc dere derf dero derr dfcc dfco dfer dfoe dfrf doce doco dod- dodd dode dodo doer doff dood doof door dorc dord dore dorf doro dorr dred dree dref drfc drod drof eccc ecce ecco ecdc ecdf eced ecef ecfc ecfr eco- ecod ecrc ecrf ecrr eddc edde eddo ede- eder edoc edod eede eeee eefe eeoc eerc eero efco efeo efor eocd eode eore ercc erce erde erdf erec ered erer erfc eroc erod eroe eroo errc erre erro fccf fdoc fece fede feed feer fefc fefe feff fefo feod feof ferc ferd fere fero ferr ffcc ffee ffff ffrr foce foco fode foed foer fofo food foof for- ford fore foro forr frcc fred free freo frfc froe o-eo occc oce oced ocee ocef ocre ocro ocrr oddd oded odeo oder odoo odor oec- oecc oedo oeec oere ofcr ofdr ofer off- offc offe offo offr ofor ofre oocr ooer ooff oooo oord oore orce orco orde ordo ore- orec ored oreo orer orfe orff oro- oroe orof oror orro rccc rcdc rcde rcfc rcrd rder rdoc recc recd rece recr redc redd rede redo redr reed reef refd refe reff refr reod reof rerd rere rero rfef rffc rocc roce roco rodd rode rodo roed roer rofc rofe roff rofo rood roof roor rorc rore roro rred rrfc rrrr