cccc cccp cccs ccoc ccow ccpp ccps ccsp ccss ccst cctc cctt coco cocp coct coop coos coot copo copp cops copt cosc coso cosp coss cost cotc coto cots cott cotw cowp cows cowt cpcs cpos cpps cpsc cpso cptp cpts cscc csco cscs csos csot cspc csps cspt cstc csto csts csws ctcp ctos ctot ctpo ctpp ctps ctsc ctss ctts cttw cwos cwot cwts occc occt ocos ocpp ocsw oct- octo octs oooo ooos oops oost ootp oots ootw opo- opos oppo opps opto opts oscc osco osoo osos osow osso ostc osts oto- otoo otos otow otpp otpw otso otto otts otwo owow owt- owtt pccc pccs pccw pcos pcpp pcps pcso pcts poco pocs poop poos poot pop- popc popo popp pops popt poso poss post potc poto pots pott potw powp pows powt ppcc ppcs ppos pppo pppp ppps ppss ppts pptt psco psoc psos pspp psps pssc psso psst psts ptcc ptop pttc pwts s-os sccc sccp sccs scct scoo scop scot scow scpo scps scpt scsc scso scst sctc scto scts soco socs soop soos soot sopo sopp sops soso soss sost sotc soto sotp sots sotw sowp sows sowt spcc spco spcs spoc 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 ssws stcc stcp stcs stoo stop stos stot stow stpp stps stss sttc swcc swoo swop swot swow swss swts tccc tcos tcpo tctc tcts toco toos toot top- topo topp tops topt tosc toso toss tost totc toto tots tott tows tpcp tpcs tppp tpsc tptp tpws tscc tscp tsop tsos tspo tsps tspt tsst tstc tsts ttcp ttop ttss tttt two- twoc twoo twop twos twot twps twss wccc wcco wccp wccs wcct wccw wcoc wcoo wcop wcos wcot wcpc wcpo wcpp wcps wcpt wcsc wcso wcsp wcss wcst wcsw wctc wcto wctp wcts wctt wctw wcwc wcwp wocc woco wocs wooc woop woos woot woow wopc wopp wops woso wosp woss wost wosw wotc wots wott wotw wowc wowo wowp wows wowt woww wpcc wpcs wpct wpcw wpoc wpop wpot wpow wppc wppt wpso wpsp wpst wptc wptw wpwc wpwt wscc wsco wscp wscs wscw wsoc wsoo wsop wsos wspc wspo wsps wspt wssc wssp wsss wsst wssw wstc wsto wstp wsts wstt wstw wsws wswt wsww wtcc wtco wtcp wtcs wtct wtcw wtoc wtot wtow wtps wtpt wtso wtsp wtss wttc wtto wtts wttt wttw wtwo wtws wtwt wtww wwco wwcs wwct wwcw wwos wwot wwow wwpc wwpt wwpw wwsc wwsp wwss wwst wwtc wwtp wwtw wwwc wwws wwww