cccc cccf cccl cccu ccfc ccff ccfl cclc ccoc ccuc cfcf cfcl cfco ckck ckcl ckco cklf ckoc ckoo clof clok cloo clou cock coco cocu cofc coff cok- coko col- colk coll colo colu coof cook cool couk coul cucc cuck cufc cuff cufo cuk- culc culk cull culo f--k fccf fcuk ffcc ffff flcl floc flok floo flou fluf fluo fock foco fofo folc folk foll folo foof fook fool foul fuc- fuck fufc fuff fufu fukk fuko fuku fulk full fulu k-lo kccc kcck kccl kccu kcfc kcfl kcfo kckc kckf kckk kckl kcko kclc kclf kclk kcll kclu kcof kcol kcou kcuf kcuk kcul kfcf kfco kfff kffk kflc kflf kfll kflo kfok kfoo kful kfuo kkck kkcl kkco kkkk kklc kklf kkll kklo kkol kkoo kkuu klcc klck klcl klfc klff klkc klkk klkl klko kllc kllk kloc klok klol kloo klou kluf kluk kluu kocf kock kofc koff kofk kofo kofu kokc kokf kokk koko koku kolc kolf kolk koll kolo kolu kooc kook kool kooo koou koul kouu kucc kuco kufc kuff kufo kukk kukl kuku kulf kull kulo kulu kuok kuol kuoo kuuk kuul kuuu lccc lcfc lfcc llcc lllc llll lloc lloo locc lock loco locu loff lokk loko loll lolo looc loof look lool louk loul louu luck luff lufu luko lull lulu luuk occc oclc ocul ofcl off- offc offo offu okcu okko oklo okok okol okul olcc ollo olof ooff ooku oolo oooo oucc oufc ouff oulk oulu ouu- ufcu ufuk ukcc ukko ukok ulcc ulco ullo ulo- uloc uluk ulul uocc uofl uofo uolc uulu uuoc uuuu