-ey c-- ccc ccd cce cck cco cct cdc cdd cde cdk cdo cdt cdy ce- cec ced cee cek ceo cet cey ckc ckd cko ckt cky co- coc cod coe cok coo cot coy ctc ctd cte ctk cto ctt cty cyc cyd cye cyk cyo cyt dcc dcd dce dck dco dct ddc ddd dde ddk ddo ddt ddy de- dec ded dee dek deo det dey dkc dke dkk dko dkt doc dod doe dok doo dot doy dtc dtd dte dtk dto dtt dty dy- dyc dyd dye dyk dyo dyy ec- ecc ecd ece eck eco ect ed- edc edd ede edk edo edt edy eec eed eee eek eeo eet eey ekc ekd eke eko ekt eky eo- eoc eod eoe eok eoo eot etc etd ete etk eto ett ety eyc eyd eye eyo eyt k-t kcc kcd kce kck kct kdc kde kdk kdo kdt kdy ke- kec ked kee kek keo ket key kkc kke kkk kkt kky koc kod koe kok koo kot koy ktc kte ktk kto ktt kyc kyd kye kyo kyt oc- occ ocd ock oco oct odc odd ode odo odt oec oed oee oeo oet oey okc okd oke okk oko oo- ooc ood ook ooo oot ot- otc otd ote otk oto ott oyd oye oyo tcc tcd tce tck tco tct tdc tdd tde tdk tdo tdt tdy te- tec ted tee tek teo tet tey tkc tke tkk tko tkt tky to- toc tod toe tok too tot toy ttc ttd tte ttk tto ttt tty tyc tyd tye tyo tyt ycc ycd yce yco ycy yde ydo ydt ydy yec yed yee yek yeo yet yey ykk yoc yod yoe yok yoo yot yoy ytc ytd yte ytk yto ytt yyc yye yyt yyy