c-- ccc ccd ccn cco ccp cct cdc cdd cdn cdo cdp cdt cdy cn- cnc cnd cnn cno cnp cnt cny co- coc cod con coo cop cot coy cpc cpd cpn cpo cpp cpt ctc ctd ctn cto ctp ctt cty cyc cyd cyn cyo cyp cyt dcc dcd dcn dco dcp dct ddc ddd ddn ddo ddp ddt ddy dnc dnd dnn dno dnp dnt dny doc dod don doo dop dot doy dpc dpd dpn dpo dpp dpt dtc dtd dtn dto dtp dtt dty dy- dyc dyd dyn dyo dyp dyy ncc ncd ncn nco ncp nct ndc ndd ndn ndo ndp ndt ndy nnc nnn nno nnp nnt no- noc nod non noo nop not noy npc npd npn npo npp npt ntc ntd ntn nto ntp ntt nyc nyd nyn nyo nyp nyt nyy oc- occ ocd ocn oco ocp oct odc odd odn odo odp odt on- onc ond onn ono onp ont ony oo- ooc ood oon ooo oop oot op- opc opd opn opo opp opt opy ot- otc otd otn oto otp ott oyd oyo p-p pcc pcd pcn pco pcp pct pdc pdd pdn pdo pdp pdt pn- pnc pnd pnn pno pnp pnt pny poc pod pon poo pop pot poy ppc ppd ppn ppo ppp ppt pt- ptc ptd ptn pto ptp ptt pty py- pyc pyd pyn pyo pyt tcc tcd tcn tco tcp tct tdc tdd tdn tdo tdp tdt tdy tnc tnd tnn tno tnp tnt to- toc tod ton too top tot toy tpc tpd tpn tpo tpp tpt ttc ttd ttn tto ttp ttt tty tyc tyd tyn tyo typ tyt ycc ycd yco ycp ycy ydn ydo ydt ydy ynd ynn ynp yny yoc yod yon yoo yop yot yoy ypd ypo ytc ytd ytn yto ytp ytt yyc yyt yyy