cccc cccl cclc ccnc ccoc cctc cctl cctt clon cloo clot cltc cnco cntc coco coct col- coll coln colo colt con- conc conn cono cont cool coon coot cotc cotn coto cott ctol ctot cttn lccc lctl lcto llcc lllc llll lloc lloo lntc locc locn loco loll lolo lono lont looc lool loon loot lotl loto lott ltcc ltnt lttc nccc nccn ncct nclc ncln ncnc ncoc nctc nlcc nnnn nnot nntn nocl noco noct noll nolo nolt non- nonn nono nont noo- nool noon nooo noot not- noto nott ntcc ntto occc occn occt oclc ocon oct- octo olcc ollo olon olot onc- onco onct onno onon ont- ontc onto oolo oont oooo otcl oto- oton otoo otto tccc tcnn tcon tctc tlco tlon tncc toco tol- toll tolo tolt tonn tono tool toon toot totc toto tott ttcn tton tttt