-ey c-- ccc ccd cce cco ccp ccs cdc cdd cde cdo cdp cds cdy ce- cec ced cee ceo cep ces cey co- coc cod coe coo cop cos coy cpc cpd cpe cpo cpp cps csc csd cse cso csp css csy cyc cyd cye cyo cyp cys dcc dcd dce dco dcp dcs ddc ddd dde ddo ddp dds ddy de- dec ded dee deo dep des dey doc dod doe doo dop dos doy dpc dpd dpe dpo dpp dps dsc dsd dse dso dsp dss dsy dy- dyc dyd dye dyo dyp dys dyy ec- ecc ecd ece eco ecs ed- edc edd ede edo edp eds edy eec eed eee eeo eep ees eey eo- eoc eod eoe eoo eop eos ep- epc epd epe epo epp eps es- esc esd ese eso esp ess esy eyc eyd eye eyo eyp eys oc- occ ocd oco ocp ocs odc odd ode odo odp ods oec oed oee oeo oep oes oey oo- ooc ood ooo oop oos op- opc opd ope opo opp ops opy os- osc osd ose oso osp oss oyd oye oyo oys p-p pcc pcd pce pco pcp pcs pdc pdd pde pdo pdp pds pec ped pee peo pep pes pey poc pod poe poo pop pos poy ppc ppd ppe ppo ppp pps ps- psc psd pse pso psp pss psy py- pyc pyd pye pyo pys scc scd sce sco scp scs sdc sdd sde sdo sdp sds sdy se- sec sed see seo sep ses sey soc sod soe soo sop sos soy spc spd spe spo spp sps spy ss- ssc ssd sse sso ssp sss sy- syc syd sye syp sys ycc ycd yce yco ycp ycs ycy yde ydo yds ydy yec yed yee yeo yep yes yey yoc yod yoe yoo yop yos yoy ypd ypo yps ysc yse yso ysp yss ysy yyc yye yys yyy