c-- ccc cce ccn cco cct ccu ce- cec cee cen ceo cet ceu cn- cnc cne cnn cno cnt cnu co- coc coe con coo cot cou ctc cte ctn cto ctt ctu cuc cue cun cuo cut cuu ec- ecc ece ecn eco ect ecu eec eee een eeo eet en- enc ene enn eno ent enu eo- eoc eoe eon eoo eot eou etc ete etn eto ett etu eu- euc eue eun eut ncc nce ncn nco nct ncu ne- nec nee nen neo net neu nnc nne nnn nno nnt nnu no- noc noe non noo not nou ntc nte ntn nto ntt ntu nuc nue nun nuo nut nuu oc- occ ocn oco oct ocu oec oee oen oeo oet on- onc one onn ono ont onu oo- ooc oon ooo oot ot- otc ote otn oto ott otu ou- ouc oue oun ouo out tcc tce tcn tco tct tcu te- tec tee ten teo tet teu tnc tne tnn tno tnt to- toc toe ton too tot tou ttc tte ttn tto ttt ttu tuc tue tun tuo tut tuu ucc uce ucn uco uct ucu uec uee uen uet un- unc une unn uno unt unu uoc uoe uon uoo uot utc ute utn uto utt utu uuc uue uun uut uuu