-er -ey c-- ccc ccd cce ccn cco ccr ccs cdc cdd cde cdn cdo cdr cds cdy ce- cec ced cee cen ceo cer ces cey cn- cnc cnd cne cnn cno cnr cns cny co- coc cod coe con coo cor cos coy crc crd cre crn cro crr crs cry csc csd cse csn cso csr css csy cyc cyd cye cyn cyo cyr cys dcc dcd dce dcn dco dcr dcs ddc ddd dde ddn ddo ddr dds ddy de- dec ded dee den deo der des dey dnc dnd dne dnn dno dnr dns dny doc dod doe don doo dor dos doy drc drd dre drn dro drr drs dry dsc dsd dse dsn dso dsr dss dsy dy- dyc dyd dye dyn dyo dyr dys dyy ec- ecc ecd ece ecn eco ecr ecs ed- edc edd ede edn edo edr eds edy eec eed eee een eeo eer ees eey en- enc end ene enn eno enr ens eny eo- eoc eod eoe eon eoo eor eos erc erd ere ern ero err ers ery es- esc esd ese esn eso esr ess esy eyc eyd eye eyn eyo eyr eys ncc ncd nce ncn nco ncr ncs ndc ndd nde ndn ndo ndr nds ndy ne- nec ned nee nen neo ner nes ney nnc nne nnn nno nns no- noc nod noe non noo nor nos noy nrc nrd nre nrn nro nrr nrs nry nsc nsd nse nsn nso nsr nss nsy nyc nyd nye nyn nyo nys nyy oc- occ ocd ocn oco ocr ocs odc odd ode odn odo odr ods oec oed oee oen oeo oer oes oey on- onc ond one onn ono onr ons ony oo- ooc ood oon ooo oor oos or- orc ord ore orn oro orr ors ory os- osc osd ose osn oso osr oss oyd oye oyo oys rcc rcd rce rcn rco rcr rcs rdc rdd rde rdn rdo rdr rds rdy re- rec red ree ren reo rer res rey rnc rnd rnn rno rnr rns rny roc rod roe ron roo ror ros roy rrc rrd rrn rrr rrs rsc rsd rse rsn rso rsr rss ry- ryc ryd rye ryn ryo ryr rys ryy scc scd sce scn sco scr scs sdc sdd sde sdn sdo sdr sds sdy se- sec sed see sen seo ser ses sey snc snd sne snn sno snr sns sny soc sod soe son soo sor sos soy sr- src srd sre srn sro srr srs sry ss- ssc ssd sse ssn sso ssr sss sy- syc syd sye syn syr sys ycc ycd yce yco ycs ycy yde ydn ydo yds ydy yec yed yee yen yeo yer yes yey ynd yne ynn yns yny yoc yod yoe yon yoo yor yos yoy yrc yre yrn yro yrs ysc yse yso ysr yss ysy yyc yye yys yyy