-er -ey c-- ccc ccd cce ccm ccr cdc cdd cde cdm cdr cdy ce- cec ced cee cem cer cey cmc cmd cme cmm cmr cmy crc crd cre crm crr cry cyc cyd cye cym cyr dcc dcd dce dcm dcr ddc ddd dde ddm ddr ddy de- dec ded dee dem der dey dmc dmd dme dmm dmr drc drd dre drm drr dry dy- dyc dyd dye dym dyr dyy ec- ecc ecd ece ecm ecr ed- edc edd ede edm edr edy eec eed eee eem eer eey em- emc emd eme emm emr erc erd ere erm err ery eyc eyd eye eym eyr m-r mc- mcc mcd mce mcm mcr mdc mdd mde mdm mdr mdy mec med mee mem mer mey mmc mmd mme mmm mmr mrc mrd mre mrm mrr mry my- myc myd mye mym myr rcc rcd rce rcm rcr rdc rdd rde rdm rdr rdy re- rec red ree rem rer rey rmc rmd rme rmm rmr rrc rrd rrm rrr ry- ryc ryd rye rym ryr ryy ycc ycd yce ycy yde ydy yec yed yee yem yer yey ymc yme ymm yrc yre yyc yye yyy