-er -ey c-- ccc ccd cce cck ccn ccr cdc cdd cde cdk cdn cdr cdy ce- cec ced cee cek cen cer cey ckc ckd cky cn- cnc cnd cne cnn cnr cny crc crd cre crk crn crr cry cyc cyd cye cyk cyn cyr dcc dcd dce dck dcn dcr ddc ddd dde ddk ddn ddr ddy de- dec ded dee dek den der dey dkc dke dkk dkr dnc dnd dne dnk dnn dnr dny drc drd dre drk drn drr dry dy- dyc dyd dye dyk dyn dyr dyy ec- ecc ecd ece eck ecn ecr ed- edc edd ede edk edn edr edy eec eed eee eek een eer eey ekc ekd eke ekr eky en- enc end ene enk enn enr eny erc erd ere erk ern err ery eyc eyd eye eyn eyr kcc kcd kce kck kcn kcr kdc kde kdk kdr kdy ke- kec ked kee kek ken ker key kkc kke kkk kkn kkr kky kn- knc knd kne knk knn knr krc krd krk krn krr kry kyc kyd kye kyn kyr ncc ncd nce nck ncn ncr ndc ndd nde ndk ndn ndr ndy ne- nec ned nee nek nen ner ney nkc nke nkk nkn nkr nky nnc nne nnk nnn nrc nrd nre nrk nrn nrr nry nyc nyd nye nyk nyn nyy rcc rcd rce rcn rcr rdc rdd rde rdn rdr rdy re- rec red ree rek ren rer rey rkc rke rkk rky rnc rnd rnn rnr rny rrc rrd rrk rrn rrr ry- ryc ryd rye ryk ryn ryr ryy ycc ycd yce ycy yde ydn ydy yec yed yee yek yen yer yey ykk ykn ynd yne ynk ynn yny yrc yre yrn yyc yye yyy