-up c-- ccc cce cco ccp cct ccu ce- cec cee ceo cep cet ceu co- coc coe coo cop cot cou cpc cpe cpo cpp cpt cpu ctc cte cto ctp ctt ctu cuc cue cuo cup cut cuu ec- ecc ece eco ect ecu eec eee eeo eep eet eo- eoc eoe eoo eop eot eou ep- epc epe epo epp ept epu etc ete eto etp ett etu eu- euc eue eup eut oc- occ oco ocp oct ocu oec oee oeo oep oet oo- ooc ooo oop oot op- opc ope opo opp opt ot- otc ote oto otp ott otu ou- ouc oue ouo oup out p-p pcc pce pco pcp pct pcu pec pee peo pep pet peu poc poe poo pop pot pou ppc ppe ppo ppp ppt ppu pt- ptc pte pto ptp ptt ptu puc pue pup put puu tcc tce tco tcp tct tcu te- tec tee teo tep tet teu to- toc toe too top tot tou tpc tpe tpo tpp tpt tpu ttc tte tto ttp ttt ttu tuc tue tuo tup tut tuu ucc uce uco ucp uct ucu uec uee uep uet uoc uoe uoo uop uot up- upc upe upo upp upt upu utc ute uto utp utt utu uuc uue uut uuu