c-- ccc cce cco cct ccu ce- cec cee ceo cet ceu co- coc coe coo cot cou ctc cte cto ctt ctu cuc cue cuo cut cuu ec- ecc ece eco ect ecu eec eee eeo eet eo- eoc eoe eoo eot eou etc ete eto ett etu eu- euc eue eut oc- occ oco oct ocu oec oee oeo oet oo- ooc ooo oot ot- otc ote oto ott otu ou- ouc oue ouo out tcc tce tco tct tcu te- tec tee teo tet teu to- toc toe too tot tou ttc tte tto ttt ttu tuc tue tuo tut tuu ucc uce uco uct ucu uec uee uet uoc uoe uoo uot utc ute uto utt utu uuc uue uut uuu