-up c-- ccc cck cco ccp ccu ckc cko co- coc cok coo cop cou cpc cpk cpo cpp cpu cuc cuk cuo cup cuu kcc kck kcp kcu kkc kkk kkp kku koc kok koo kop kou kpc kpk kpo kpp kpu kuc kuk kup kuu oc- occ ock oco ocp ocu okc okk oko okp oku oo- ooc ook ooo oop op- opc opk opo opp ou- ouc ouk ouo oup p-p pcc pck pco pcp pcu pkc pko pkp pku poc pok poo pop pou ppc ppk ppo ppp ppu puc puk pup puu ucc uck uco ucp ucu ukc ukk ukp uku uoc uok uoo uop up- upc upk upo upp upu uuc uuu