-er -ey -ic c-- ccc cce cci ccr ccs ce- cec cee cei cer ces cey ci- cic cie cii cir cis crc cre cri crr crs cry csc cse csi csr css csy cyc cye cyr cys ec- ecc ece eci ecr ecs eec eee eer ees eey eic eie eii eir eis erc ere eri err ers ery es- esc ese esi esr ess esy eyc eye eyr eys icc ice ici icr ics icy ie- iec iee iei ier ies iey iic iie iii iir iis ir- irc ire iri irr irs iry is- isc ise isi isr iss isy iyc iye iyr iys iyy rcc rce rci rcr rcs re- rec ree rei rer res rey ric rie rii rir ris riy rrc rri rrr rrs rsc rse rsi rsr rss ry- ryc rye ryr rys ryy scc sce sci scr scs se- sec see sei ser ses sey sic sie sii sir sis sr- src sre sri srr srs sry ss- ssc sse ssi ssr sss sy- syc sye syi syr sys ycc yce yci ycs ycy yec yee yei yer yes yey yie yii yir yis yrc yre yrs ysc yse ysi ysr yss ysy yyc yye yys yyy