-up c-- ccc cce cco ccp ccs ccu ce- cec cee ceo cep ces ceu co- coc coe coo cop cos cou cpc cpe cpo cpp cps cpu csc cse cso csp css csu cuc cue cuo cup cus cuu ec- ecc ece eco ecs ecu eec eee eeo eep ees eo- eoc eoe eoo eop eos eou ep- epc epe epo epp eps epu es- esc ese eso esp ess esu eu- euc eue eup eus oc- occ oco ocp ocs ocu oec oee oeo oep oes oo- ooc ooo oop oos op- opc ope opo opp ops os- osc ose oso osp oss osu ou- ouc oue ouo oup ous p-p pcc pce pco pcp pcs pcu pec pee peo pep pes peu poc poe poo pop pos pou ppc ppe ppo ppp pps ppu ps- psc pse pso psp pss psu puc pue pup pus puu scc sce sco scp scs scu se- sec see seo sep ses seu soc soe soo sop sos sou spc spe spo spp sps spu ss- ssc sse sso ssp sss ssu suc sue suo sup sus suu ucc uce uco ucp ucs ucu uec uee uep ues uoc uoe uoo uop uos up- upc upe upo upp ups upu usc use uso usp uss usu uuc uue uus uuu