c-cd cccc cccl cccp cccu ccdc ccdp cclc ccoc ccod ccpl ccpp ccuc ccup cddl clcd cldc clod cloo clop clou clpp clud coco cocp cocu codd codl col- cold coll colo colp colu cood cool coop copd copo copp coud coul coup cpcu cpdl cplc cppd cucc culc culd cull culo culp cupl cupo cupp dccc dccl dccp dccu dcop dcpl dcpo dcup dddd ddlc ddoc ddpo dlco doco docu dod- dodd dodo dold doll dolo dolp dolu dood dool doop dopo dopp douc doud doul doup dpcp dpll dppc duco dudd dudo dudu dulc dull dulo dulu duo- dupo duul lccc lcdd lcdp lcpc lcpd lcpl lddp ldpc llcc lldc lldp lllc llll lloc llod lloo llud locc loco locu lold loll lolo looc lood lool loop lopp lopu loud loul loup louu lpod lppl ludd ludo lull lulu lupo lupu luup occc oclc ocpd ocpp ocul oddd odoo odop odou olcc ollo olpc oold oolo oooo opo- oppo oucc oudc ould oulu ouu- pccc pccl pcll pclo pcod pcpp pdcp pdlc pdoc plcc ploc plod ploo plop plou plpp plud plup pocd poco pod- podd podo podu pold poll polo polu pood pool poop pop- popc popo popp poud poul poup ppcc ppcd pplo ppod pppd pppo pppp pudo pudu pull pulo pulp pulu pupl pupu puuc uccp ucdc ucdd udoo udop udpd ulcc ulco ullo ulo- uloc ulul uocc uolc updo uplo uppc uppp uppu upup uucp uulu uuoc uuuu