c-cd cccc cccp ccdc ccdp ccoc ccod ccpp ckck ckco ckdo ckoc ckoo ckpc cock coco cocp codd cok- coko cood cook coop copd copo copp cppd dccc dccp dcop dcpo dddd ddoc ddpo dkdc dock doco dod- dodd dodo doko dood dook doop dopo dopp dpcp dppc kccc kccd kcck kcdc kcdd kckc kckk kcko kcpc kcpo kdcc kdcd kdco kddc kddd kddk kdkd kdkk kdko kdoc kdok kkcd kkck kkco kkdc kkdd kkdo kkkk kkoo kkpc kkpk kocd kock kocp kodk kodo kokc kokk koko kokp kooc kook kooo koop kopp kpcc kpdc kpdo kpkk kpoc kpod kpok kpoo kpop kppc kppd kppk kppo kppp occc ocpd ocpp oddd odoo odop okko okok okpo oooo opo- oppo pccc pcod pcpp pdcp pdoc pocd pock poco pod- podd podo poko pood pook poop pop- popc popo popp ppcc ppcd ppdk ppod pppd pppo pppp