c-cd cccc cccl cccu ccdc cclc ccoc ccod ccuc cddl clcd cldc clod cloo clou clud coco cocu codd codl col- cold coll colo colu cood cool coud coul cucc culc culd cull culo dccc dccl dccu dddd ddlc ddoc dlco doco docu dod- dodd dodo dold doll dolo dolu dood dool douc doud doul duco dudd dudo dudu dulc dull dulo dulu duo- duul lccc lcdd llcc lldc lllc llll lloc llod lloo llud locc loco locu lold loll lolo looc lood lool loud loul louu ludd ludo lull lulu occc oclc ocul oddd odoo odou olcc ollo oold oolo oooo oucc oudc ould oulu ouu- ucdc ucdd udoo ulcc ulco ullo ulo- uloc ulul uocc uolc uulu uuoc uuuu