cccc cccf cccl ccfc ccff ccfl cclc ccoc cctc cctl cctt cfcf cfcl cfco cftc cftk cftl ckck ckcl ckco cklf ckoc ckoo ckot clof clok cloo clot cltc cock coco coct cofc coff coft cok- coko col- colk coll colo colt coof cook cool coot cotc coto cott ctcf ctfc ctfo ctol ctot f--k fccf fcot fcto ffcc ffff fftf flcl floc flok floo flot fltk fock foco fofo folc folk foll folo folt foof fook fool foot foto fott ft-c ft-l ftfc k-lo kccc kcck kccl kcct kcfc kcfl kcfo kcft kckc kckf kckk kckl kcko kclc kclf kclk kcll kclt kcof kcol kcot kctc kcto kfcf kfco kfff kffk kflc kflf kfll kflo kflt kfok kfoo kftc kftk kftt kkck kkcl kkco kkct kkft kkkk kklc kklf kkll kklo kkol kkoo kkot kktc kktk kktl klcc klck klcl klfc klff klft klkc klkk klkl klko kllc kllk kloc klok klol kloo kltc kltf kltk klto kltt kocf kock koct kofc koff kofk kofo koft kokc kokf kokk koko kolc kolf kolk koll kolo kolt kooc kook kool kooo koot kotc kotk koto kott ktcc ktck ktcl ktco ktfc ktfl ktfo ktkc ktkk ktko ktkt ktlf ktlk ktlo ktlt ktoc ktok ktoo ktot kttc kttf kttk ktto kttt lccc lcfc lctl lcto lfcc llcc lllc llll lloc lloo locc lock loco loff loft lokk loko loll lolo looc loof look lool loot lotl loto lott ltcc ltfc lttc occc occt oclc oct- octo ofcl off- offc offo okko oklo okok okol okot okto olcc ollo olof olot ooff oolo oooo otcl otfc oto- otof otok otoo otto tccc tcfc tctc tfot tftc tkof tkol tlco tock toco toff tofo toft toko tol- tolk toll tolo tolt toof took tool toot totc toto tott ttfc ttff tttt