-er -ey -ic c-- ccc cce cci ccp ccr ccs ce- cec cee cei cep cer ces cey ci- cic cie cii cip cir cis cpc cpe cpi cpp cpr cps crc cre cri crp crr crs cry csc cse csi csp csr css csy cyc cye cyp cyr cys ec- ecc ece eci ecr ecs eec eee eep eer ees eey eic eie eii eip eir eis ep- epc epe epi epp epr eps erc ere eri erp err ers ery es- esc ese esi esp esr ess esy eyc eye eyp eyr eys icc ice ici icp icr ics icy ie- iec iee iei iep ier ies iey iic iie iii iip iir iis ipc ipe ipi ipp ipr ips ipy ir- irc ire iri irp irr irs iry is- isc ise isi isp isr iss isy iyc iye iyr iys iyy p-p pcc pce pci pcp pcr pcs pec pee pei pep per pes pey pic pie pii pip pir pis ppc ppe ppi ppp ppr pps prc pre pri prp prr prs pry ps- psc pse psi psp psr pss psy py- pyc pye pyr pys rcc rce rci rcp rcr rcs re- rec ree rei rep rer res rey ric rie rii rip rir ris riy rpc rpe rpi rpp rpr rps rrc rri rrp rrr rrs rsc rse rsi rsp rsr rss ry- ryc rye ryr rys ryy scc sce sci scp scr scs se- sec see sei sep ser ses sey sic sie sii sip sir sis spc spe spi spp spr sps spy sr- src sre sri srp srr srs sry ss- ssc sse ssi ssp ssr sss sy- syc sye syi syp syr sys ycc yce yci ycp ycs ycy yec yee yei yep yer yes yey yie yii yip yir yis yps yrc yre yrp yrs ysc yse ysi ysp ysr yss ysy yyc yye yys yyy