-up c-- ccc cck cco ccp ccs ccu ckc cko cks co- coc cok coo cop cos cou cpc cpk cpo cpp cps cpu csc csk cso csp css csu cuc cuk cuo cup cus cuu kcc kck kcp kcs kcu kkc kkk kkp kks kku koc kok koo kop kos kou kpc kpk kpo kpp kps kpu ksc ksk kso ksp kss ksu kuc kuk kup kus kuu oc- occ ock oco ocp ocs ocu okc okk oko okp oks oku oo- ooc ook ooo oop oos op- opc opk opo opp ops os- osc osk oso osp oss osu ou- ouc ouk ouo oup ous p-p pcc pck pco pcp pcs pcu pkc pko pkp pks pku poc pok poo pop pos pou ppc ppk ppo ppp pps ppu ps- psc psk pso psp pss psu puc puk pup pus puu scc sck sco scp scs scu sk- skc skk sko skp sks sku soc sok soo sop sos sou spc spk spo spp sps spu ss- ssc ssk sso ssp sss ssu suc suk suo sup sus suu ucc uck uco ucp ucs ucu ukc ukk ukp uku uoc uok uoo uop uos up- upc upk upo upp ups upu usc usk uso usp uss usu uuc uus uuu