cccc cccf cccp cccu ccfc ccff ccnc ccnf ccnp ccnr ccnu ccoc ccpn ccpp ccpr ccrc ccrf ccrp ccuc ccup cfcf cfcn cfco cffr cfnr cfor cfpo cfpr cfrn cfrp cfun cnco cncp cnrc cnrr coco cocp cocu cofc coff con- conc conf conn cono coof coon coop copo copp copr cor- corc corf corn coro corp corr coun coup cour cpcu cpff crcc crcr crfc croc cron croo crop cror crpc crun crup cucc cucn cufc cuff cufo cuno cunp cuon cupo cupp cupr curf curn curo curr fccf fccp fcup ffcc ffff ffrr ffun fnuf foco fofo fono foof foon fopp for- forn foro forr foun foup four fp-c fpcc fprf frcc frcn frcp frfc fron frop frou frun fuc- fufc fuff fufu funf fuor fur- furn furo furr n-up nccc nccf nccn nccp nccr nccu ncfc ncnc ncoc ncor ncpc ncrc ncrp nfcu nfff nfon nnnn nnpr noco non- nonn nono nonu noo- noon nooo noop noor nor- norc norf norn noro norr noun noup nour npcc nppc nrfc nroc nron nrpc nrpn nrrc nucu nuff nunc nunn nuno nuoc nuon nurc nurn nurp nurr nuru occc occn ocfp ocon ocpp ocro ocrr ocur ofcr off- offc offo offr offu ofno ofor onc- oncf onco onno onon onor onpu onup onur oocr ooff oooo opo- opon opor oppo orco orff orfu ornc orno oro- orof oron oror orpc orro orup oucc oufc ouff oun- our- ourn ouro ouu- pccc pcfc pcpn pcpp pcrc pcrf pcun pfff pffr pnon pnpo pnpp pnro pnup poco poff ponc pono ponp poof poon poop poor pop- popc popo popp porc porn poro porr pouf poun poup pour ppcc pppn pppo pppp pprc pprf ppru ppur prcc prcf prcp prfc prnp pro- proc prof pron proo prop prou pruf pruu puff punc puno punu pupu pur- puro purp purr puru puuc rccc rcfc rcnr rcon rcpo rffc rnco rncp rocc roco rofc roff rofo ronc rono roof roon roop roor ropo rorc roro roru rouf roun roup rpfc rpof rpon rppn rrfc rrrr rrun rufc ruff rufo runc runf runn runo rupp rurc ruro rurp ruru ruun u-rp uccp ucon ucrc ufcu uncc uncf unco uncp unfp unno unon unop unpc unrf unro uocc uofo uor- upnp upon upor uppc uppp uppu upup urff uro- uroo urpo urun urup urur uucp uuno uuoc uuuu