-ic c-- ccc cci ccm ccr ccs ci- cic cii cim cir cis cmc cmi cmm cmr cms crc cri crm crr crs csc csi csm csr css icc ici icm icr ics iic iii iim iir iis im- imc imi imm ims ir- irc iri irm irr irs is- isc isi ism isr iss m-r mc- mcc mci mcm mcr mcs mi- mic mii mim mir mis mmc mmi mmm mmr mms mrc mri mrm mrr mrs msc msi msm msr mss rcc rci rcm rcr rcs ric rii rim rir ris rmc rmi rmm rmr rms rrc rri rrm rrr rrs rsc rsi rsm rsr rss scc sci scm scr scs sic sii sim sir sis smc smi smm smr sms sr- src sri srm srr srs ss- ssc ssi ssm ssr sss