c-- ccc ccd ccn ccr cdc cdd cdn cdr cdy cn- cnc cnd cnn cnr cny crc crd crn crr cry cyc cyd cyn cyr dcc dcd dcn dcr ddc ddd ddn ddr ddy dnc dnd dnn dnr dny drc drd drn drr dry dy- dyc dyd dyn dyr dyy ncc ncd ncn ncr ndc ndd ndn ndr ndy nnc nnn nrc nrd nrn nrr nry nyc nyd nyn nyy rcc rcd rcn rcr rdc rdd rdn rdr rdy rnc rnd rnn rnr rny rrc rrd rrn rrr ry- ryc ryd ryn ryr ryy ycc ycd ycy ydn ydy ynd ynn yny yrc yrn yyc yyy