cccc cccp cccs cchp cchr cchs ccpp ccpr ccps ccrc ccrp ccrs ccsp ccss chch chcp chcs chhs chks chpp chpr chrc chrp chrr chrs chsc chsh chsr ckch ckck ckcs ckhs ckpc ckpr ckrc cksh cpcs cphs cpps cprs cpsc cpsk cpsr crcc crcr crhs crkc crkp crpc crps crsp crss cscc csch cscr cscs cshp cshs csks cspc csps csrc csrs cssr hccc hcch hccs hchs hcpc hcps hcrp hcsc hcss hhhh hhhs hhpc hkcc hkcs hpcc hphs hpps hpsc hpss hrhs hrpc hrpp hrps hrrc hscc hshs hsps hssp kccc kcck kccr kchh kchk kchr kchs kckc kckk kckr kcpc kcpr kcps kcrc kcrh kcrp kcrr kcrs kcsc kcsp kcsr kcss khcc khch khck khcs khhk khhs khkk khkr khks khpr khrk khrr khss kkch kkck kkcr kkcs kkhh kkhk kkhr kkkk kkpc kkpk kkps kkrc kkrh kkrk kkrr kkrs kksp kksr kkss kpcc kpch kpcr kpcs kphp kphr kphs kpkk kpkr kppc kppk kppp kppr kprc kprh kprk kprp kprr kprs kpsc kpsh kpsp krcc krch krcs krhc krhp krhs krkc krkh krkk krkr krks krph krpr krps krrc krrk krrr krrs krsc krsh krsk krsr krss ksch ksck kscr kscs kshk kshp kshr kshs kskk kskr ksks kspc kspk kspr ksps ksrh ksrp ksrr ksrs kssr ksss pccc pccs pchp pchs pcks pcpp pcps pcrc phcc phhs phrr phrs phsc pkcs ppcc ppcs pphs pppp ppps pprc ppsh ppss prcc prcp prcs prhs prps prrs prsc prss pshc pshs psph pspp pspr psps psrk psrp pssc rccc rccs rchs rcps rcsc rcss rhcp rhhs rkss rpcs rphs rpps rrhs rrrr rrsp rscc rsch rscs rshs rspk rsps sccc sccp sccs sch- schh schr schs sck- scps scr- scrc scrs scsc scsh scsr shcc shcp shhh shhs shps shrp shrs shsc skhs skpc skss spcc spcs sphr sphs spkr spps sprs spsp spss srcc srch srhs srpc srps srsp sscc sscp sscs sshs sspc ssps ssrc ssrs sssc sssh ssss