cccc cccp cccs ccpp ccpr ccps ccrc ccrp ccrs ccrt ccsp ccss ccst cctc cctt ckck ckcs ckpc ckpr ckrc ckst ckts cpcs cpps cprs cprt cpsc cpsk cpsr cptp cptr cpts crcc crcr crkc crkp crpc crps crrt crsp crss crst crtc crtp crts cscc cscr cscs csks cspc csps cspt csrc csrs cssr cstc cstr csts ctcp ctpp ctps ctrc ctrp ctrs ctsc ctss ctts kccc kcck kccr kcct kckc kckk kckr kcpc kcpr kcps kcpt kcrc kcrp kcrr kcrs kcrt kcsc kcsp kcsr kcss kcst kctc kkck kkcr kkcs kkct kkkk kkpc kkpk kkps kkpt kkrc kkrk kkrr kkrs kkrt kksp kksr kkss kkst kktc kktk kkts kpcc kpcr kpcs kpkk kpkr kppc kppk kppp kppr kprc kprk kprp kprr kprs kprt kpsc kpsp kptr kpts kptt krcc krcs krkc krkk krkr krks krpr krps krpt krrc krrk krrr krrs krrt krsc krsk krsr krss krst krtc krtk krtr krts ksck kscr kscs kskk kskr ksks kspc kspk kspr ksps kspt ksrp ksrr ksrs ksrt kssr ksss ksst kstc kstk kstp kstr ksts kstt ktcc ktck ktcr ktcs ktkc ktkk ktkr ktks ktkt ktpk ktpr ktpt ktrc ktrk ktrp ktrr ktrs ktrt ktsc ktsr ktst kttc kttk kttp kttr ktts kttt pccc pccs pcks pcpp pcps pcrc pcts pkcs pkts ppcc ppcs pppp ppps pprc ppss ppts pptt prcc prcp prcs prps prrs prsc prss prtc prtp prtr pspp pspr psps psrk psrp pssc psst psts ptcc pttc pttk rccc rccs rcps rcpt rcsc rcss rctc rcts rkss rkts rpcs rpps rpts rrrr rrsp rscc rscs rspk rsps rstp rsts rtcc rtps rtss rttp rtts sccc sccp sccs scct sck- scps scpt scr- scrc scrs scsc scsr scst sctc sctr scts skpc skrt skss spcc spcs spkr spps sprs spsp spss spst sptc sptr spts srcc srct srpc srps srpt srsp srtp srtr sscc sscp sscs sspc ssps sspt ssrc ssrs sssc ssss sstc sstp ssts stcc stcp stcs stks stpp stps strc strk strs stss sttc sttr tccc tctc tcts tkts tpck tpcp tpcs tpks tppp tppr tprs tpsc tptp tptr trcc trpc trpp trps trst trtc trtr tscc tscp tsks tsps tspt tssr tsst tstc tsts ttcp ttss tttt