cccc cccf ccci cccp cccs ccfc ccff ccfi ccic ccii ccip ccis ccoc ccpp ccps ccsf ccsi ccsp ccss cfcf cfco cfcs cfos cfpo cfps cfsi cicc cici cico cics ciff cifs ciii ciis ciko cios cipf cipo cipp cips cis- cisc cisk cisp ciss ckck ckco ckcs ckfi ckoc ckoi ckoo ckos ckpc ckso cock coco cocp cofc coff cofi cofs coif coip cois cok- coko coof cook coop coos copi copo copp cops cosc cosi coso cosp coss cpcs cpff cpic cpif cpio cpos cpps cpsc cpsk cpso cscc cscf csci csco cscs csfc csik csio csis csks csos cspc cspi csps f--k fccf fccp fcic fcii fcps fcsc ffcc ffff ffii ffps ffss ficc fick fico fics fifc fiff fifi fifo fiii fiki fios fipp fips fisc fisi fisk fiss foci fock foco focs fofo fois foki foof fook foos fopp fops fosi foso foss fp-c fpcc fscc fsck fsfi fsfo fspc fspf fssc fssf fssp iccc iccf icci icco iccp iccs icis icks icoc icos icpc icpo icps icsc icsi icsp icss ifco ifcp ific ifis ifpo ifps ifsc ifso ifsp iiii iiio iiis iioi iioo iiop iios iipf iisc iisi iisp ikki ikko ikoo ioci iocp iofc ioii ioio ioko ioof iooi iooo ioos iops ioso ipcc ipcs ipfc ipkf ipko ipop ipos ippc ippf ippo ipsc ipsi ipso ipsp ipss iscc isci isco iscp iscs isfc isfp isic isis iskf isko iso- isoc isof isok isop isos ispc ispf isps issc issf issi isso issp isss k-ci k-os kccc kcci kcck kcfc kcfi kcfo kcfp kcic kcif kcii kcis kckc kckf kckk kcko kcof kcos kcpc kcpi kcpo kcps kcsc kcsf kcsi kcsp kcss kfcf kfco kfcs kfff kffk kfio kfis kfok kfoo kfsi kfsk kfsp kicc kick kicp kics kiff kifs kiic kiii kiik kiip kiis kikc kikf kiki kikk kiko kioc kioi kiok kioo kip- kipi kipo kipp kips kisc kisf kisi kisk kiso kiss kkci kkck kkco kkcs kkfi kkfs kkic kkik kkkk kkoo kkpc kkpk kkps kksf kksi kksp kkss kocf koci kock kocp kocs kofc koff kofi kofk kofo kofp koii kokc kokf koki kokk koko kokp koks kooc kooi kook kooo koop koos kopf kopi kopp kops kos- kosc kosf kosi koso kosp koss kpcc kpcs kpfc kpfk kpif kpkk kpoc kpof kpok kpoo kpop kppc kppk kppo kppp kpsc kpsf kpsi kpso kpsp ksci ksck ksco kscs ksfc ksfi ksfo ksif ksii ksik ksip ksis kskf kskk ksko ksks ksoc ksof ksoi ksok ksoo ksop ksos kspc kspi kspk kspo ksps kssi ksso ksss occc occi ocfp ocis ocks ocos ocpp off- offc offo offs ofik oici oick oiii oiko oiks oios oipc oisc okic okko okok okpo oksi okso ooff oofs oooo ooos oops oosi opic opii opio opis opo- opos oppi oppo opps opsi oscc osci osco osii osik osip osis oski osoi osoo osos ossi osso pccc pccs pcfc pcip pcks pcos pcpp pcps pcso pfcs pfff pfic pfis pfkp pfps picc pici pick pico pics piff pifs piip piki pikk piko piks pipi pipo pipp pips pisi pisk piso piss pkcs pock poco pocs poff pofi poik poio pois poko poof pook poop poos pop- popc popi popo popp pops posi posk poso poss ppcc ppci ppcs ppic ppif ppos pppo pppp ppps ppsf ppss psci psco psfk psfs psip psis psoc psoi psos pspi pspp psps pssc psso s-ic s-ii s-os sccc sccp sccs scfc scfi sci- scic scif scio scip scis sck- scok scoo scop scpi scpo scps scsc scsi scso sfcc sfco sfcs sffc sfio sfos sfpc sfss sicc sici sick sico sicp sics siff sifo siik siki siko siks siop sios sipc sipi sipo sipp sips sisc sisi sisk siss skfc skic skif skik skio skip skis skop skpc skpo skss soci sock soco socs sofi sofo soic soif soik sois soki sokk soko soof sook soop soos sopi sopo sopp sops sosi soso soss spcc spco spcs spfc spfs spic spik spio spip spis spoc spok spoo spop spos sppf spps spso spsp spss sscc ssci sscp sscs ssfc ssfp ssis ssoc ssop sspc sspf sspo ssps sssc sssf sssi ssss