-er -ey -ic c-- ccc ccd cce cci cco ccr cdc cdd cde cdi cdo cdr cdy ce- cec ced cee cei ceo cer cey ci- cic cid cie cii cio cir co- coc cod coe coi coo cor coy crc crd cre cri cro crr cry cyc cyd cye cyo cyr dcc dcd dce dci dco dcr ddc ddd dde ddi ddo ddr ddy de- dec ded dee dei deo der dey di- dic did die dii dio dir diy doc dod doe doi doo dor doy drc drd dre dri dro drr dry dy- dyc dyd dye dyo dyr dyy ec- ecc ecd ece eci eco ecr ed- edc edd ede edi edo edr edy eec eed eee eeo eer eey eic eid eie eii eio eir eo- eoc eod eoe eoi eoo eor erc erd ere eri ero err ery eyc eyd eye eyo eyr i-d icc icd ice ici ico icr icy idc idd ide idi ido idr idy ie- iec ied iee iei ier iey iic iid iie iii iio iir io- ioc iod ioe ioi ioo ior ir- irc ird ire iri iro irr iry iyc iye iyo iyr iyy o-i oc- occ ocd oci oco ocr odc odd ode odi odo odr oec oed oee oei oeo oer oey oic oid oie oii oio oir oo- ooc ood ooi ooo oor or- orc ord ore ori oro orr ory oyd oye oyi oyo rcc rcd rce rci rco rcr rdc rdd rde rdi rdo rdr rdy re- rec red ree rei reo rer rey ric rid rie rii rio rir riy roc rod roe roi roo ror roy rrc rrd rri rrr ry- ryc ryd rye ryo ryr ryy ycc ycd yce yci yco ycy yde ydo ydy yec yed yee yei yeo yer yey yid yie yii yio yir yoc yod yoe yoi yoo yor yoy yrc yre yro yyc yye yyy