cccc cccf ccci cccl cccs ccfc ccff ccfi ccfl ccic ccii ccil ccir ccis cclc ccli ccls ccoc ccrc ccrf ccri ccrl ccrs ccsf ccsi ccsl ccss cfcf cfcl cfco cfcs cffr cfls cfor cfos cfsi cfsl cicc cici cico cicr cics ciff cifl cifs ciii ciis ciko cikr cili cilk cill cilo cils cior cios circ ciri cirk cirl ciro cirr cirs cis- cisc cisk cisl cisr ciss ckck ckcl ckco ckcs ckfi ckfr cklf ckoc ckoi ckoo ckor ckos ckrc cksl ckso clic clif clii clik clio clir clis clof clok cloo clor clos clri clro clrs clsc cock coco cofc coff cofi cofs coif coil coir cois cok- coko col- coli colk coll colo cols coof cook cool coos cor- corc corf cori cork corl coro corr cors cosc cosi cosl coso coss crcc crcr crfc crfl crfs cric crif crik cris crkc crkl crlf crls croc crok crol croo cror crss cscc cscf csci cscl csco cscr cscs csfc csfr csik csio csir csis csks cslr csor csos csrc csrs cssr f--k fccf fcic fcii fcsc fcsl ffcc ffff ffii ffrr ffss ficc fick fico fics fifc fiff fifi fifo fiii fiil fiki fili filk fill filo fils fior fios firk firs fisc fisi fisk fiss flcl flic flii flik flis floc flok floo flor flos foci fock foco focs fofo foil fois foki folc foli folk foll folo folr fols foof fook fool foos for- fori fork forl foro forr fors fosi foso foss frcc frfc fric frik fril frio fris frol fros frsc frso fscc fsck fsfi fsfo fssc fssf iccc iccf icci iccl icco iccr iccs icis icks icll iclr icoc icor icos icrc icrf icrr icrs icsc icsi icsr icss ifco ific ifil ifis ifor ifrf ifri ifsc ifso iiii iiio iiis iioi iioo iios iirc iirs iisc iisi iisr ikki ikko ikoo ikri ilic ilio ilir ilis ilki ilks ill- illi illo ills iloc ilok iloo ilos ioci iofc ioii ioio ioko iolo ioof iooi iooo ioos iori iors ioso ircc ircs iri- iric iril irio iris irki irks iroc irrc irri irrs irsf iscc isci isco iscr iscs isfc isic isil isis iskf isko isls iso- isoc isof isok isol isor isos isri issc issf issi isso issr isss k-ci k-lo k-os kccc kcci kcck kccl kccr kcfc kcfi kcfl kcfo kcic kcif kcii kcil kcir kcis kckc kckf kckk kckl kcko kckr kclc kclf kcli kclk kcll kclr kcls kcof kcol kcor kcos kcrc kcri kcro kcrr kcrs kcsc kcsf kcsi kcsr kcss kfcf kfco kfcr kfcs kfff kffk kfil kfio kfir kfis kflc kflf kfli kfll kflo kfls kfok kfoo kfor kfrc kfri kfro kfrr kfrs kfsi kfsk kfsr kicc kick kicl kicr kics kiff kifl kifr kifs kiic kiii kiik kiis kikc kikf kiki kikk kiko kikr kili kilk kill kilo kilr kioc kioi kiok kiol kioo kirc kirf kiri kirk kiro kirr kirs kisc kisf kisi kisk kisl kiso kisr kiss kkci kkck kkcl kkco kkcr kkcs kkfi kkfr kkfs kkic kkik kkkk kklc kklf kkli kkll kklo kkls kkol kkoo kkor kkrc kkrf kkrk kkrl kkro kkrr kkrs kksf kksi kksr kkss klcc klci klck klcl klcr klcs klfc klff klfi klic klif klik klil klio klir klis klkc klkk klkl klko klkr klks kllc kllk klls kloc klok klol kloo klor klos klrc klrf klrk klrr klrs klsc klsf klsi klsr kocf koci kock kocs kofc koff kofi kofk kofo koii koil koir kokc kokf koki kokk koko kokr koks kolc kolf koli kolk koll kolo kolr kols kooc kooi kook kool kooo koor koos korc korf kori kork korl koro korr kors kos- kosc kosf kosi koso kosr koss krcc krci krcl krco krcs krfc krff krfo krfs krik kril krio kris krkc krki krkk krko krkr krks krlc krlf kroc krof kroi krok krol kroo kror kros krrc krrf krri krrk krrl krro krrr krrs krsc krsf krsk krsl krsr krss ksci ksck kscl ksco kscr kscs ksfc ksfi ksfo ksfr ksif ksii ksik ksil ksir ksis kskf kskk ksko kskr ksks kslc ksli kslk ksll kslo kslr ksoc ksof ksoi ksok ksol ksoo ksor ksos ksrf ksro ksrr ksrs kssi kssl ksso kssr ksss lccc lccs lcfc lcfr lcis lcls lcor lcrl lcrs lcsc lcsr lfcc lick lico licr lics liff lifl lifo liii liir liis liko lili lill lilo lils lio- lior lios lirc liri lirk lirl liro lirr lirs lisi lisk liso liss lkfs lkrs llcc llcs llks lllc llll lloc lloo locc loci lock loco locs loff lofi loic loif loik loir lois loki lokk loko loli loll lolo lols looc loof look lool loor loos lori lork loro lors losc losi loso loss lrcs lrfc lric lrif lroc lroi lrrc lrrr ls-r lsco lscs lsfc lsof lsrc lsso lssr occc occi ocis ocks oclc ocos ocrl ocro ocrr ocrs ofcl ofcr off- offc offo offr offs ofik ofor oici oick oiii oiko oiks oils oios oisc okic okir okko oklo okok okol okor okro oksi okso olcc olfs olic olio olis olki olli ollo olof olor olos olsi oocr ooff oofs oolo oooo ooos oosi orci orco orcs orff orfi orfs ori- oric orif oril orio oris orko orlo oro- orof orok oror oros orri orro orrs orsi orsk orso oscc osci oscl osco osii osik osis oski osli oslo osoi osoo osor osos osro ossi osso rccc rccs rcfc rcic rcis rcls rcos rcsc rcsi rcsl rcss rffc rffl rfic ricc rick rico rics riff rifs riif riis riki rikk rill rilo riol rios riri rirs risc risi risk riso riss rkkf rkos rkss rlcs rlif rlls rocc rock roco rocs rofc roff rofl rofo roif roik roil roio roir rois roki rokk roko rokr roks rolf rolk roll rolo roof rooi rook rool roor roos rorc rori rork roro rosc rosi roso ross rrfc rrif rrrr rscc rscs rsfc rsis rslc rsos rssl s-ic s-ii s-os sccc sccl sccs scfc scfi sci- scic scif scil