cccc cccf ccci cccp cccs ccfc ccff ccfi ccic ccii ccip ccis ccoc ccpp ccps ccsf ccsi ccsp ccss ccst cctc cctt cfcf cfco cfcs cfit cfos cfpo cfps cfsi cftc cicc cici cico cics cict ciff cifs ciii ciis ciit cios cipf cipo cipp cips cis- cisc cisp ciss cist citf citi cito citp cits citt coco cocp coct cofc coff cofi cofs coft coif coip cois coit coof coop coos coot copi copo copp cops copt cosc cosi coso cosp coss cost cotc coti coto cots cott cpcs cpff cpft cpic cpif cpio cpos cpps cpsc cpso cptp cpts cscc cscf csci csco cscs csfc csio csis csit csos csot cspc cspi csps cspt cstc csto csts ctcf ctcp ctfc ctfo ctfs ctic ctos ctot ctpo ctpp ctps ctsc ctss ctts fccf fccp fcic fcii fcot fcps fcsc fcst fcto ffcc ffff ffii ffps ffss fftf ficc fico fics fict fifc fiff fifi fifo fift fiii fios fipp fips fisc fisi fiss fist fitc fiti fits fitt foci foco focs fofo fois foof foos foot fopp fops fosi foso foss fost foti foto fotp fots fott fp-c fpcc fpct fscc fsfi fsfo fspc fspf fssc fssf fssp ft-c ftfc ftii ftop ftos ftps iccc iccf icci icco iccp iccs icct icis icoc icos icpc icpo icps icsc icsi icsp icss icst ictp icts ifco ifcp ific ifis ifit ifpo ifps ifsc ifso ifsp ifto iiii iiio iiis iiit iioi iioo iiop iios iipf iisc iisi iisp iist iitt ioci iocp iofc ioii ioio ioit ioof iooi iooo ioos iops ioso iotf ioto ipcc ipcs ipct ipfc ipop ipos ippc ippf ippo ipsc ipsi ipso ipsp ipss iptc ipto ipts iscc isci isco iscp iscs isct isfc isfp isic isis isit iso- isoc isof isop isos ispc ispf isps issc issf issi isso issp isss istc isti isto istp ists itcs itic itif itis itof itoi itoo itos itpc itsf itsi itso itsp ittf itto occc occi occt ocfp ocis ocos ocpp oct- octi octo octs off- offc offo offs ofit ofst oftp oici oiii oios oipc oisc oist oitc oiti ooff oofs oooo ooos oops oosi oost ootp oots opic opii opio opis opit opo- opos oppi oppo opps opsi opti opto opts oscc osci osco osii osip osis osoi osoo osos ossi osso ostc osti osts otfc otfp otic otif otis otit oto- otof otoo otos otpp otso otti otto otts pccc pccs pcfc pcip pcos pcpp pcps pcso pcts pfcs pfff pfft pfic pfis pfit pfps picc pici pico pics pict piff pifs piip piot pipi pipo pipp pips pisi piso piss pist pitf piti pito pits pitt poco pocs poff pofi poio pois poof poop poos poot pop- popc popi popo popp pops popt posi poso poss post potc potf poti poto pots pott ppcc ppci ppcs ppic ppif ppos pppo pppp ppps ppsf ppss ppts pptt psci psco psfs psip psis psoc psoi psos pspi pspp psps pssc psso psst psts ptcc ptop pttc s-ic s-ii s-os sccc sccp sccs scct scfc scfi sci- scic scif scio scip scis scit scoo scop scot scpi scpo scps scpt scsc scsi scso scst sctc scto scts sfcc sfco sfcs sffc sfio sfos sfpc sfss sftp sfts sicc sici sico sicp sics siff sifo sift siit siop sios siot sipc sipi sipo sipp sips sipt sisc sisi siss sist sit- sitc siti sito sits sitt soci soco socs sofi sofo soft soic soif sois soit soof soop soos soot sopi sopo sopp sops sosi soso soss sost sotc soto sotp sots spcc spco spcs spfc spfs spic spio spip spis spit spoc spoo spop spos spot sppf spps spso spsp spss spst sptc spto spts sscc ssci sscp sscs ssfc ssfp ssis ssit ssoc ssop ssot sspc sspf sspo ssps sspt sssc sssf sssi ssss sstc sstp ssts stcc stcp stcs stfc stic stif stio stip stis stit stof stoo stop stos stot stpf stpp stps stsf stsi stss sttc tccc tcfc tcos tcpo tctc tcts tfot tfpt tfsi tfss tftc tftp ticc tico tics tiff tifo tift tiit tiop tios tip- tipc tipi tipo tipp tips tipt tisi tiso tiss tist titc titi tito titp tits titt toci toco toff tofi tofo toft tois toit toof toos toot top- topf topi topo topp tops topt tosc tosi toso toss tost totc toti toto tots tott tpcp tpcs tppp tpsc tptp tscc tscp tsfc tsis tsoi tsop tsos tspo tsps tspt tssf tssi tsst tstc tsts ttcp ttfc ttff ttop ttss tttt