cccc cccp cccs ccnc ccnp ccns ccny ccpn ccpp ccps ccsn ccsp ccss cncp cnnz cnss cpcs cpns cpps cpsc cscc cscs csnp csny csnz cspc csps csys cyc- cycc cycs cyn- cypc cyps cyy- cyyc cyyn czyz nccc nccn nccp nccs ncnc ncpc ncsc ncss ncsy nnnn nnss npcc nppc npss npsy nscc nscs nspc nsps nssc nssp nsss nycc nycy nyny nypc nysc nyss nzcc nzpc nzpp pccc pccs pcns pcpn pcpp pcps pnpp pnsc ppcc ppcs pppn pppp ppps ppss psnc pspp psps pssc psy- psys pyn- pypy pyss pyzy sccc sccp sccs sccy scps scsc scsn scyn sncc sncp snns snpp snsy snys spcc spcs spns spps spsp spss spy- spys sscc sscp sscs ssns sspc ssps sssc ssss syn- sync syns syny syss szss yccc ypcc ysnp yyyy zsss zypp zzzs zzzz