cccc cccf cccl cccu ccfc ccff ccfl cclc ccoc cctc cctl cctt ccuc ccut cfcf cfcl cfco cftc cftl clof cloo clot clou cltc clut coco coct cocu cofc coff coft col- coll colo colt colu coof cool coot cotc coto cott cotu coul cout ctcf ctfc ctfo ctol ctot cucc cufc cuff cufo culc cull culo cult cut- cutc cuto cutt fccf fcot fcto ffcc ffff fftf flcl floc floo flot flou fluf fluo foco fofo folc foll folo folt foof fool foot foto fott foul fout ft-c ft-l ftfc ftuc fuc- fuct fufc fuff fufu full fulu futo futu lccc lcfc lctl lcto lfcc llcc lllc llll lloc lloo locc loco locu loff loft loll lolo looc loof lool loot lotl loto lott loul lout louu ltcc ltfc lttc ltuc luff luft lufu lull lulu occc occt oclc oct- octo ocul ofcl off- offc offo offu olcc ollo olof olot oltu ooff oolo oooo otcl otfc oto- otof otoo otto ottu oucc oufc ouff oulu out- outo ouu- tccc tccu tcfc tctc tcul tfcu tfot tftc tlco toco toff tofo toft tofu tol- toll tolo tolt tolu toof tool toot totc toto tott toul tout ttfc ttff tttt ttul tucc tuco tufc tuff tufo tuft tufu tull tulo tulu tutl tuto tutt tutu tuuo ucut ufcu ulcc ulco ulft ullo ulo- uloc ulto ultt ulul uocc uofl uofo uolc utfo utto uttu uulu uuoc uutf uuuu