-er -ey -ic c-- ccc ccd cce cci ccr ccs cdc cdd cde cdi cdr cds cdy ce- cec ced cee cei cer ces cey ci- cic cid cie cii cir cis crc crd cre cri crr crs cry csc csd cse csi csr css csy cyc cyd cye cyr cys dcc dcd dce dci dcr dcs ddc ddd dde ddi ddr dds ddy de- dec ded dee dei der des dey di- dic did die dii dir dis diy drc drd dre dri drr drs dry dsc dsd dse dsi dsr dss dsy dy- dyc dyd dye dyr dys dyy ec- ecc ecd ece eci ecr ecs ed- edc edd ede edi edr eds edy eec eed eee eer ees eey eic eid eie eii eir eis erc erd ere eri err ers ery es- esc esd ese esi esr ess esy eyc eyd eye eyr eys i-d icc icd ice ici icr ics icy idc idd ide idi idr ids idy ie- iec ied iee iei ier ies iey iic iid iie iii iir iis ir- irc ird ire iri irr irs iry is- isc isd ise isi isr iss isy iyc iye iyr iys iyy rcc rcd rce rci rcr rcs rdc rdd rde rdi rdr rds rdy re- rec red ree rei rer res rey ric rid rie rii rir ris riy rrc rrd rri rrr rrs rsc rsd rse rsi rsr rss ry- ryc ryd rye ryr rys ryy scc scd sce sci scr scs sdc sdd sde sdi sdr sds sdy se- sec sed see sei ser ses sey sic sid sie sii sir sis sr- src srd sre sri srr srs sry ss- ssc ssd sse ssi ssr sss sy- syc syd sye syi syr sys ycc ycd yce yci ycs ycy yde yds ydy yec yed yee yei yer yes yey yid yie yii yir yis yrc yre yrs ysc yse ysi ysr yss ysy yyc yye yys yyy