cccc cccu ccnc ccnu ccoc cctc cctt ccuc ccut cnco cntc cnut coco coct cocu con- conc conn cono cont coon coot cotc cotn coto cott cotu coun cout coux ctot cttn cucc cucn cuno cunt cuon cut- cutc cuto cutt cxxx nccc nccn ncct nccu ncnc ncoc nctc nnnn nnot nntn noco noct non- nonn nono nont nonu nonx noo- noon nooo noot not- noto nott noun nout ntcc ntnu ntto ntuc nucu nunc nunn nuno nunt nuoc nuon nutt nutu occc occn occt ocon oct- octo onc- onco onct onno onon ont- ontc onto onut oont oooo oto- oton otoo otto ottu oucc oun- out- outo ouu- oxo- oxon oxox oxxo tccc tccu tcnn tcon tctc tncc tnut toco tonn tono tonu toon toot totc toto tott toun tout tox- toxo toxt ttcn tton tttt tucc tuco tunc tunn tuno tunu tuto tutt tutu tuuo txcn ucon ucut uncc unco unct unno unon unox unto unut uocc utto uttu uuno uuoc uuuu xcon xoco xout xoxo xuxu xxxo xxxx