-er -ey bbb bbc bbd bbe bbn bbr bbs bby bcb bcc bcd bce bcn bcr bcs bcy bdb bdc bdd bde bdr bds bdy be- beb bec bed bee ben ber bes bey bnb bnc bnd bne bnn bnr bns brb brd bre brn brr brs bry bsb bsc bsd bse bsn bsr bss bsy by- byc byd bye byn byr bys c-- cbb cbc cbd cbe cbn cbr cbs cby ccb ccc ccd cce ccn ccr ccs cdb cdc cdd cde cdn cdr cds cdy ce- ceb cec ced cee cen cer ces cey cn- cnb cnc cnd cne cnn cnr cns cny crb crc crd cre crn crr crs cry csb csc csd cse csn csr css csy cyb cyc cyd cye cyn cyr cys dbb dbc dbd dbe dbn dbr dbs dby dcb dcc dcd dce dcn dcr dcs ddb ddc ddd dde ddn ddr dds ddy de- deb dec ded dee den der des dey dnb dnc dnd dne dnn dnr dns dny drb drc drd dre drn drr drs dry dsb dsc dsd dse dsn dsr dss dsy dy- dyb dyc dyd dye dyn dyr dys dyy ebb ebc ebd ebe ebn ebr ebs eby ec- ecb ecc ecd ece ecn ecr ecs ed- edb edc edd ede edn edr eds edy eeb eec eed eee een eer ees eey en- enb enc end ene enn enr ens eny erb erc erd ere ern err ers ery es- esb esc esd ese esn esr ess esy eyc eyd eye eyn eyr eys nbb nbc nbd nbe nbn nbr nbs ncb ncc ncd nce ncn ncr ncs ndb ndc ndd nde ndn ndr nds ndy ne- neb nec ned nee nen ner nes ney nnb nnc nne nnn nns nrb nrc nrd nre nrn nrr nrs nry nsb nsc nsd nse nsn nsr nss nsy nyc nyd nye nyn nys nyy rbb rbc rbd rbe rbn rbr rbs rcb rcc rcd rce rcn rcr rcs rdb rdc rdd rde rdn rdr rds rdy re- reb rec red ree ren rer res rey rnb rnc rnd rnn rnr rns rny rrb rrc rrd rrn rrr rrs rsb rsc rsd rse rsn rsr rss ry- ryc ryd rye ryn ryr rys ryy sbb sbc sbd sbe sbn sbr sbs sby scb scc scd sce scn scr scs sdb sdc sdd sde sdn sdr sds sdy se- seb sec sed see sen ser ses sey snb snc snd sne snn snr sns sny sr- srb src srd sre srn srr srs sry ss- ssb ssc ssd sse ssn ssr sss sy- syb syc syd sye syn syr sys ybc ybe ybr ybs yby ycc ycd yce ycs ycy yde ydn yds ydy yeb yec yed yee yen yer yes yey ynd yne ynn yns yny yrc yre yrn yrs ysb ysc yse ysr yss ysy yyb yyc yye yys yyy