-er -ey c-- ccc ccd cce ccn ccr cdc cdd cde cdn cdr cdy ce- cec ced cee cen cer cey cn- cnc cnd cne cnn cnr cny crc crd cre crn crr cry cyc cyd cye cyn cyr dcc dcd dce dcn dcr ddc ddd dde ddn ddr ddy de- dec ded dee den der dey dnc dnd dne dnn dnr dny drc drd dre drn drr dry dy- dyc dyd dye dyn dyr dyy ec- ecc ecd ece ecn ecr ed- edc edd ede edn edr edy eec eed eee een eer eey en- enc end ene enn enr eny erc erd ere ern err ery eyc eyd eye eyn eyr ncc ncd nce ncn ncr ndc ndd nde ndn ndr ndy ne- nec ned nee nen ner ney nnc nne nnn nrc nrd nre nrn nrr nry nyc nyd nye nyn nyy rcc rcd rce rcn rcr rdc rdd rde rdn rdr rdy re- rec red ree ren rer rey rnc rnd rnn rnr rny rrc rrd rrn rrr ry- ryc ryd rye ryn ryr ryy ycc ycd yce ycy yde ydn ydy yec yed yee yen yer yey ynd yne ynn yny yrc yre yrn yyc yye yyy