cccc cccp cccs cccu ccpp ccps ccsp ccss ccuc ccup ccus ckck ckcs ckpc cpcs cpcu cpps cpsc cpsk cpsu cpus cscc cscs csks cspc csps csup csus cucc cuck cuk- cupp cups cusk cusp cuss cusu kccc kcck kccu kckc kckk kcpc kcps kcpu kcsc kcsp kcss kcsu kcuk kcup kkck kkcs kkkk kkpc kkpk kkps kksp kkss kksu kkup kkus kkuu kpcc kpcs kpkk kppc kppk kppp kpsc kpsp kpsu kpus ksck kscs kscu kskk ksks ksku kspc kspk ksps ksss kssu ksup ksuu kucc kucp kukk kuks kuku kups kupu kusc kusp kusu kuuk kuuu pccc pccs pcks pcpp pcps pkcs ppcc ppcs pppp ppps ppss pscu pspp psps pssc puck puku pups pupu pusk puss puuc sccc sccp sccs sck- scps scsc scsu scup skpc skss skup spcc spcs spps spsp spss spus sscc sscp sscs sspc ssps sssc ssss suc- succ suck sucs suks suku sup- supp sups sus- susk susp suss susu suus uccp ucsc ucsu ukcc ukps uksc ukup upcs uppc uppp uppu upsc upup us-k uscc uscs uspc uspp usps ussc usss ussu usus uucp uuuu