c-- ccc ccd ccn cco ccp ccr cdc cdd cdn cdo cdp cdr cdy cn- cnc cnd cnn cno cnp cnr cny co- coc cod con coo cop cor coy cpc cpd cpn cpo cpp cpr crc crd crn cro crp crr cry cyc cyd cyn cyo cyp cyr dcc dcd dcn dco dcp dcr ddc ddd ddn ddo ddp ddr ddy dnc dnd dnn dno dnp dnr dny doc dod don doo dop dor doy dpc dpd dpn dpo dpp dpr drc drd drn dro drp drr dry dy- dyc dyd dyn dyo dyp dyr dyy ncc ncd ncn nco ncp ncr ndc ndd ndn ndo ndp ndr ndy nnc nnn nno nnp no- noc nod non noo nop nor noy npc npd npn npo npp npr nrc nrd nrn nro nrp nrr nry nyc nyd nyn nyo nyp nyy oc- occ ocd ocn oco ocp ocr odc odd odn odo odp odr on- onc ond onn ono onp onr ony oo- ooc ood oon ooo oop oor op- opc opd opn opo opp opr opy or- orc ord orn oro orp orr ory oyd oyo p-p pcc pcd pcn pco pcp pcr pdc pdd pdn pdo pdp pdr pn- pnc pnd pnn pno pnp pnr pny poc pod pon poo pop por poy ppc ppd ppn ppo ppp ppr prc prd prn pro prp prr pry py- pyc pyd pyn pyo pyr rcc rcd rcn rco rcp rcr rdc rdd rdn rdo rdp rdr rdy rnc rnd rnn rno rnp rnr rny roc rod ron roo rop ror roy rpc rpd rpn rpo rpp rpr rrc rrd rrn rrp rrr ry- ryc ryd ryn ryo ryr ryy ycc ycd yco ycp ycy ydn ydo ydy ynd ynn ynp yny yoc yod yon yoo yop yor yoy ypd ypo yrc yrn yro yrp yyc yyy