c-cd cccc cccp cccu ccdc ccdp ccoc ccod ccpp ccuc ccup ckck ckco ckdo ckdu ckoc ckoo ckpc cock coco cocp cocu codd cok- coko cood cook coop copd copo copp coud couk coup cpcu cppd cucc cuck cuk- cupo cupp dccc dccp dccu dcop dcpo dcup dddd ddoc ddpo dkdc dock doco docu dod- dodd dodo doko dood dook doop dopo dopp douc doud douk doup dpcp dppc duck duco dudd dudo dudu duku duo- dupo kccc kccd kcck kccu kcdc kcdd kcdu kckc kckk kcko kcou kcpc kcpo kcpu kcuk kcup kdcc kdcd kdco kddc kddd kddk kdkd kdkk kdko kdoc kdok kduc kdup kkcd kkck kkco kkdc kkdd kkdo kkkk kkoo kkpc kkpk kkup kkuu kocd kock kocp kodk kodo kodu kokc kokk koko kokp koku kooc kook kooo koop koou kopp kopu kouu kpcc kpdc kpdo kpkk kpoc kpod kpok kpoo kpop kpou kppc kppd kppk kppo kppp kucc kucd kuco kucp kudd kudo kudu kukk kuku kuok kuoo kuop kupd kupu kuuk kuuu occc ocpd ocpp oddd odoo odop odou okcu okko okok okpo ooku oooo opo- oppo oucc oudc ouu- pccc pcod pcpp pdcp pdoc pocd pock poco pod- podd podo podu poko poku pood pook poop pop- popc popo popp poud pouk poup ppcc ppcd ppdk ppod pppd pppo pppp puck pudo pudu puku pupu puuc uccp ucdc ucdd udoo udop udpd uduk ukcc ukko ukok ukup uocc updo uppc uppp uppu upup uucp uuoc uuuu