cccc cccp cccs ccoc ccpp ccps ccsp ccss ccst cctc cctt ckck ckco ckcs ckoc ckoo ckos ckot ckpc ckso ckst ckts cock coco cocp coct cok- coko cook coop coos coot copo copp cops copt cosc coso cosp coss cost cotc coto cots cott cpcs cpos cpps cpsc cpsk cpso cptp cpts cscc csco cscs csks csos csot cspc csps cspt cstc csto csts ctcp ctos ctot ctpo ctpp ctps ctsc ctss ctts k-os kccc kcck kcct kckc kckk kcko kcos kcot kcpc kcpo kcps kcpt kcsc kcsp kcss kcst kctc kcto kkck kkco kkcs kkct kkkk kkoo kkot kkpc kkpk kkps kkpt kksp kkss kkst kktc kktk kkts kock kocp kocs koct kokc kokk koko kokp koks kooc kook kooo koop koos koot kopp kops kopt kos- kosc koso kosp koss kost kotc kotk koto kots kott kpcc kpcs kpkk kpoc kpok kpoo kpop kppc kppk kppo kppp kpsc kpso kpsp kpto kpts kptt ksck ksco kscs kskk ksko ksks ksoc ksok ksoo ksop ksos kspc kspk kspo ksps kspt ksso ksss ksst kstc kstk ksto kstp ksts kstt ktcc ktck ktco ktcs ktkc ktkk ktko ktks ktkt ktoc ktok ktoo ktop ktot ktpk ktpo ktpt ktsc ktso ktst kttc kttk ktto kttp ktts kttt occc occt ocks ocos ocpp oct- octo octs okko okok okot okpo okso okto oooo ooos oops oost ootp oots opo- opos oppo opps opto opts oscc osco osoo osos osso ostc osts oto- otok otoo otos otpp otso otto otts pccc pccs pcks pcos pcpp pcps pcso pcts pkcs pkts pock poco pocs poko pook poop poos poot pop- popc popo popp pops popt posk poso poss post potc poto pots pott ppcc ppcs ppos pppo pppp ppps ppss ppts pptt psco psoc psos pspp psps pssc psso psst psts ptcc ptop pttc pttk s-os sccc sccp sccs scct sck- scok scoo scop scot scpo scps scpt scsc scso scst sctc scto scts skop skot skpc skpo skss sock soco socs sokk soko sook soop soos soot sopo sopp sops soso soss sost sotc sotk soto sotp sots spcc spco spcs spoc spok spoo spop spos spot spps spso spsp spss spst sptc spto spts sscc sscp sscs ssoc ssop ssot sspc sspo ssps sspt sssc ssss sstc sstp ssts stcc stcp stcs stks stok stoo stop stos stot stpp stps stss sttc tccc tcos tcpo tctc tcts tkos tkts tock toco toko took toos toot top- topo topp tops topt tosc tosk toso toss tost totc toto tots tott tpck tpcp tpcs tpks tppp tpsc tptp tscc tscp tsks tsop tsos tspo tsps tspt tsst tstc tsts ttcp ttop ttss tttt