-ey c-- ccc ccd cce cco ccp cdc cdd cde cdo cdp cdy ce- cec ced cee ceo cep cey co- coc cod coe coo cop coy cpc cpd cpe cpo cpp cyc cyd cye cyo cyp dcc dcd dce dco dcp ddc ddd dde ddo ddp ddy de- dec ded dee deo dep dey doc dod doe doo dop doy dpc dpd dpe dpo dpp dy- dyc dyd dye dyo dyp dyy ec- ecc ecd ece eco ed- edc edd ede edo edp edy eec eed eee eeo eep eey eo- eoc eod eoe eoo eop ep- epc epd epe epo epp eyc eyd eye eyo eyp oc- occ ocd oco ocp odc odd ode odo odp oec oed oee oeo oep oey oo- ooc ood ooo oop op- opc opd ope opo opp opy oyd oye oyo p-p pcc pcd pce pco pcp pdc pdd pde pdo pdp pec ped pee peo pep pey poc pod poe poo pop poy ppc ppd ppe ppo ppp py- pyc pyd pye pyo ycc ycd yce yco ycp ycy yde ydo ydy yec yed yee yeo yep yey yoc yod yoe yoo yop yoy ypd ypo yyc yye yyy