c-cd cccc ccdc ccdn ccnc ccny ccoc ccod cdnc cdon cnco cndd coco codd cody con- conc cond conn cono cony cood coon coyn coyo cyc- cycc cyn- cyno cyon cyy- cyyc cyyn dc-y dccc dcon dddd ddoc dnoc doco dod- dodd dodo dody donc dond donn dono dood doon doyo dycd dydd dync dyno dyny dyo- dyon dyoo nccc nccn ncdc ncdn ncnc ncnd ncoc ndcc nddo ndoc nnnn noco nodo nody non- nonn nono noo- noon nooo noyo nycc nyco nycy nyny nyon occc occn ocon oddd oddy odon odoo onc- oncd onco ondo ondy onno onod onon onoy oooo oyon yccc ydon ynon yodo yond yono yood yoon yoyn yoyo yyyy