c-cd cccc cccl cccu ccdc ccdn cclc ccnc ccnu ccoc ccod ccuc cddl cdnc cdon clcd cldc clod clon cloo clou clud clun cnco cndd coco cocu codd codl col- cold coll coln colo colu con- conc cond conn cono cood cool coon coud coul coun cucc cucn culc culd cull culo cund cuno cuon dccc dccl dccu dcon dddd ddlc ddoc dlco dnoc doco docu dod- dodd dodo dold doll dolo dolu donc dond donn dono dood dool doon douc doud doul doun duco dudd dudo dudu dulc dull dulo dulu dunc dunn duno duo- duon duul lccc lcdd llcc lldc lllc llll lloc llod lloo llud lndn locc locn loco locu lold loll lolo lond lono looc lood lool loon loud loul loun louu ludd ludo lull lulu lund lunn luno nccc nccn nccu ncdc ncdn ncdu nclc ncln ncnc ncnd ncoc ndcc nddo ndoc nlcc nnnn nocl noco nodo nodu nold noll nolo non- nonn nono nonu noo- nool noon nooo noul noun nucu nudc nudd nudo null nunc nunn nuno nuoc nuon occc occn oclc ocon ocul oddd odon odoo odou olcc oldn ollo olon onc- oncd onco ondo onno onod onon oold oolo oooo oucc oudc ould oulu oun- ound ouu- ucdc ucdd ucon udon udoo udun ulcc ulco ullo ulno ulo- uloc ulul uncc uncl unco undo unno unon uocc uolc uulu uuno uuoc uuuu