-ey c-- ccc cce cco ccp cct ce- cec cee ceo cep cet cey co- coc coe coo cop cot coy cpc cpe cpo cpp cpt ctc cte cto ctp ctt cty cyc cye cyo cyp cyt ec- ecc ece eco ect eec eee eeo eep eet eey eo- eoc eoe eoo eop eot ep- epc epe epo epp ept etc ete eto etp ett ety eyc eye eyo eyp eyt oc- occ oco ocp oct oec oee oeo oep oet oey oo- ooc ooo oop oot op- opc ope opo opp opt opy ot- otc ote oto otp ott oye oyo p-p pcc pce pco pcp pct pec pee peo pep pet pey poc poe poo pop pot poy ppc ppe ppo ppp ppt pt- ptc pte pto ptp ptt pty py- pyc pye pyo pyt tcc tce tco tcp tct te- tec tee teo tep tet tey to- toc toe too top tot toy tpc tpe tpo tpp tpt ttc tte tto ttp ttt tty tyc tye tyo typ tyt ycc yce yco ycp ycy yec yee yeo yep yet yey yoc yoe yoo yop yot yoy ypo ytc yte yto ytp ytt yyc yye yyt yyy