-ic c-- ccc cci ccm cco ccr ccs ci- cic cii cim cio cir cis cmc cmi cmm cmo cmr cms co- coc coi com coo cor cos crc cri crm cro crr crs csc csi csm cso csr css icc ici icm ico icr ics iic iii iim iio iir iis im- imc imi imm imo ims io- ioc ioi iom ioo ior ios ir- irc iri irm iro irr irs is- isc isi ism iso isr iss m-o m-r mc- mcc mci mcm mco mcr mcs mi- mic mii mim mio mir mis mmc mmi mmm mmo mmr mms moc moi mom moo mor mos mrc mri mrm mro mrr mrs msc msi msm mso msr mss o-i oc- occ oci ocm oco ocr ocs oic oii oim oio oir ois om- omc omi omm omo omr oms oo- ooc ooi oom ooo oor oos or- orc ori orm oro orr ors os- osc osi osm oso osr oss rcc rci rcm rco rcr rcs ric rii rim rio rir ris rmc rmi rmm rmo rmr rms roc roi rom roo ror ros rrc rri rrm rrr rrs rsc rsi rsm rso rsr rss scc sci scm sco scr scs sic sii sim sio sir sis smc smi smm smo smr sms soc soi som soo sor sos sr- src sri srm sro srr srs ss- ssc ssi ssm sso ssr sss