cccc cccf ccci cccl ccfc ccff ccfi ccfl ccic ccii ccil cclc ccli ccoc cctc cctl cctt cfcf cfcl cfco cfit cftc cftl cicc cici cico cict ciff cifl ciii ciit cili cill cilo cilt citf citi citl cito citt clic clif clii clio clit clof cloo clot cltc coco coct cofc coff cofi coft coif coil coit col- coli coll colo colt coof cool coot cotc coti coto cott ctcf ctfc ctfo ctic ctol ctot fccf fcic fcii fcot fcto ffcc ffff ffii fftf ficc fico fict fifc fiff fifi fifo fift fiii fiil fili fill filo fitc fiti fitt flcl flic flii flit floc floo flot foci foco fofo foil folc foli foll folo folt foof fool foot foti foto fott ft-c ft-l ftfc ftii iccc iccf icci iccl icco icct icll icoc ifco ific ifil ifit ifto iiii iiio iiit iioi iioo iitt ilic ilio ilit ill- illi illo illt iloc iloo ilot ioci iofc ioii ioio ioit iolo ioof iooi iooo iotf ioto itic itif itil itll itof itoi itol itoo ittf itto lccc lcfc lctl lcto lfcc lico lict liff lifl lifo lift liii lili lill lilo lilt lio- liti litl lito litt llcc lllc llll lloc lloo locc loci loco loff lofi loft loic loif loit loli loll lolo looc loof lool loot loti lotl loto lott ltcc ltci ltfc lttc occc occi occt oclc oct- octi octo ofcl off- offc offo ofit oici oiii oitc oiti olcc olic olio olit olli ollo olof olot ooff oolo oooo otcl otfc otic otif otit oto- otof otoo otti otto tccc tcfc tctc tfot tftc ticc tico tiff tifo tift tiit till tilo tilt titc titi tito titt tlco tlli toci toco toff tofi tofo toft toil toit tol- toli toll tolo tolt toof tool toot totc toti toto tott ttfc ttff tttt