-er -ey c-- ccc ccd cce ccg ccn ccr cct cdc cdd cde cdg cdn cdr cdt cdy ce- cec ced cee ceg cen cer cet cey cgc cgd cge cgg cgn cgr cgt cgy cn- cnc cnd cne cng cnn cnr cnt cny crc crd cre crg crn crr crt cry ctc ctd cte ctg ctn ctr ctt cty cyc cyd cye cyg cyn cyr cyt dcc dcd dce dcg dcn dcr dct ddc ddd dde ddg ddn ddr ddt ddy de- dec ded dee deg den der det dey dgc dgd dge dgg dgn dgr dgt dnc dnd dne dng dnn dnr dnt dny drc drd dre drg drn drr drt dry dtc dtd dte dtg dtn dtr dtt dty dy- dyc dyd dye dyn dyr dyy ec- ecc ecd ece ecg ecn ecr ect ed- edc edd ede edg edn edr edt edy eec eed eee eeg een eer eet eey egc egd ege egg egn egr egt egy en- enc end ene eng enn enr ent eny erc erd ere erg ern err ert ery etc etd ete etg etn etr ett ety eyc eyd eye eyn eyr eyt g-d gcc gcd gce gcg gcn gcr gct gdc gdd gde gdn gdr gdt ge- gec ged gee geg gen ger get gey ggc ggd ggg ggn ggr ggt gnc gnd gne gnn gnr gnt grc grd gre grg grn grr grt gry gtc gtd gte gtg gtn gtr gtt gty gy- gyd gye gyn gyr ncc ncd nce ncg ncn ncr nct ndc ndd nde ndg ndn ndr ndt ndy ne- nec ned nee neg nen ner net ney ngc ngd nge ngg ngn ngt nnc nne nng nnn nnt nrc nrd nre nrg nrn nrr nrt nry ntc ntd nte ntg ntn ntr ntt nyc nyd nye nyg nyn nyt nyy rcc rcd rce rcg rcn rcr rct rdc rdd rde rdg rdn rdr rdt rdy re- rec red ree reg ren rer ret rey rgc rgd rge rgg rgn rgr rgt rnc rnd rng rnn rnr rnt rny rrc rrd rrg rrn rrr rrt rtc rtd rte rtg rtn rtr rtt rty ry- ryc ryd rye ryg ryn ryr ryy tcc tcd tce tcg tcn tcr tct tdc tdd tde tdg tdn tdr tdt tdy te- tec ted tee teg ten ter tet tey tgc tge tgg tgn tgr tgt tgy tnc tnd tne tng tnn tnr tnt trc trd tre trg trn trr trt try ttc ttd tte ttg ttn ttr ttt tty tyc tyd tye tyg tyn tyr tyt ycc ycd yce ycy yde ydg ydn ydt ydy yec yed yee yeg yen yer yet yey ygc ynd yne yng ynn yny yrc yre yrg yrn yrt ytc ytd yte ytn ytr ytt yyc yye yyg yyt yyy