-ic c-- ccc cci cco ccp ccr ccs ci- cic cii cio cip cir cis co- coc coi coo cop cor cos coy cpc cpi cpo cpp cpr cps crc cri cro crp crr crs cry csc csi cso csp csr css csy cyc cyo cyp cyr cys icc ici ico icp icr ics icy iic iii iio iip iir iis io- ioc ioi ioo iop ior ios ipc ipi ipo ipp ipr ips ipy ir- irc iri iro irp irr irs iry is- isc isi iso isp isr iss isy iyc iyo iyr iys iyy o-i oc- occ oci oco ocp ocr ocs oic oii oio oip oir ois oo- ooc ooi ooo oop oor oos op- opc opi opo opp opr ops opy or- orc ori oro orp orr ors ory os- osc osi oso osp osr oss oyi oyo oys p-p pcc pci pco pcp pcr pcs pic pii pio pip pir pis poc poi poo pop por pos poy ppc ppi ppo ppp ppr pps prc pri pro prp prr prs pry ps- psc psi pso psp psr pss psy py- pyc pyo pyr pys rcc rci rco rcp rcr rcs ric rii rio rip rir ris riy roc roi roo rop ror ros roy rpc rpi rpo rpp rpr rps rrc rri rrp rrr rrs rsc rsi rso rsp rsr rss ry- ryc ryo ryr rys ryy scc sci sco scp scr scs sic sii sio sip sir sis soc soi soo sop sor sos soy spc spi spo spp spr sps spy sr- src sri sro srp srr srs sry ss- ssc ssi sso ssp ssr sss sy- syc syi syp syr sys ycc yci yco ycp ycs ycy yii yio yip yir yis yoc yoi yoo yop yor yos yoy ypo yps yrc yro yrp yrs ysc ysi yso ysp ysr yss ysy yyc yys yyy