c-cd cccc cccp cccs ccdc ccdn ccdp ccds ccnc ccnp ccns ccpn ccpp ccps ccsd ccsn ccsp ccss cdcs cdnc cdps cdss cncp cndd cndp cnss cpcs cpns cppd cpps cpsc cscc cscd cscs csdn csdp csnp cspc cspd csps cssd dccc dccp dccs dcds dcns dcps dcsc dcss dddd ddps ddss dncs dnsc dpcp dppc dpsd dscc dscn dscp dscs dsdp dsps dssc dssn dssp nccc nccn nccp nccs ncdc ncdn ncds ncnc ncnd ncpc ncsc ncss ndcc ndcp ndcs ndnp ndpd ndps ndss nnnn nnss npcc nppc nppd npss nscc nscd nscs nsds nspc nsps nssc nssp nsss pccc pccs pcns pcpn pcpp pcps pdcp pdns pdpn pdsd pdss pnpp pnsc ppcc ppcd ppcs ppds pppd pppn pppp ppps ppss psdc psdp psds psnc pspp psps pssc sccc sccp sccs scdc scdp scds scnd scps scsc scsd scsn sdcc sddc sdds sdps sdsc sdss sncc sncp snns snpp snsd spcc spcs spdc spdp spns sppd spps spsd spsp spss sscc sscp sscs ssdc ssdd ssdp ssns sspc ssps sssc ssss