-er -ey -ic c-- ccc ccd cce cci ccr cdc cdd cde cdi cdr cdy ce- cec ced cee cei cer cey ci- cic cid cie cii cir crc crd cre cri crr cry cyc cyd cye cyr dcc dcd dce dci dcr ddc ddd dde ddi ddr ddy de- dec ded dee dei der dey di- dic did die dii dir diy drc drd dre dri drr dry dy- dyc dyd dye dyr dyy ec- ecc ecd ece eci ecr ed- edc edd ede edi edr edy eec eed eee eer eey eic eid eie eii eir erc erd ere eri err ery eyc eyd eye eyr i-d icc icd ice ici icr icy idc idd ide idi idr idy ie- iec ied iee iei ier iey iic iid iie iii iir ir- irc ird ire iri irr iry iyc iye iyr iyy rcc rcd rce rci rcr rdc rdd rde rdi rdr rdy re- rec red ree rei rer rey ric rid rie rii rir riy rrc rrd rri rrr ry- ryc ryd rye ryr ryy ycc ycd yce yci ycy yde ydy yec yed yee yei yer yey yid yie yii yir yrc yre yyc yye yyy