cccc cccf cccs ccfc ccff ccnc ccnf ccns ccoc ccsf ccsn ccss cfcf cfcn cfco cfcs cfns cfos ckck ckco ckcs cknc ckns ckoc ckoo ckos ckso cnco cnss cock coco cofc coff cofs cok- coko con- conc conf conk conn cono cons coof cook coon coos cosc coso coss cscc cscf csco cscs csfc csks csos f--k fccf fcsc ffcc ffff ffss fock foco focs fofo fono fons foof fook foon foos foso foss fscc fsck fsfo fssc fssf k-os kccc kcck kcfc kcfn kcfo kckc kckf kckk kckn kcko kcno kcns kcof kcon kcos kcsc kcsf kcsn kcss kfcf kfco kfcs kfff kffk kffn kfnc kfnf kfnk kfnn kfno kfns kfok kfon kfoo kfsk kkck kkcn kkco kkcs kkfn kkfs kkkk kknn kkno kkns kkon kkoo kksf kksn kkss knck kncn knco knfo knkk knnk knns knoc knok knon knsc knsk knsn knso knss kocf kock kocn kocs kofc koff kofk kofo kokc kokf kokk kokn koko koks konc konk kono kooc kook koon kooo koos kos- kosc kosf koso koss ksck kscn ksco kscs ksfc ksfn ksfo kskf kskk kskn ksko ksks ksnc ksnf ksnk ksnn ksns ksoc ksof ksok kson ksoo ksos kssn ksso ksss nccc nccf nccn nccs ncfc ncnc ncoc ncos ncsc ncsf ncss nfff nfon nkfc nkok nnnn nnos nnss nock noco nocs noko non- nonn nono nons noo- nook noon nooo noos nos- nosk noss nscc nscs nsfc nsfk nsfs nskk nsof nsok nsos nssc nssf nsso nsss occc occn ocks ocon ocos off- offc offo offs ofno okko okno okok okon okso onc- oncf onco onno onon onos onsc onso ooff oofs oons oooo ooos oscc osco osno osoo osos osso s-os sccc sccs scfc sck- scok scon scoo scsc scsn scso sfcc sfco sfcs sffc sfos sfss skfc skn- skon skss sncc sncf snco snns snoc snoo snos sock soco socs sofo sokk sokn soko son- sonk sono sons soof sook soon soos soso soss sscc sscs ssfc ssns ssoc sssc sssf ssss