-ic c-- ccc cci ccm cco ccs ci- cic cii cim cio cis cmc cmi cmm cmo cms co- coc coi com coo cos csc csi csm cso css icc ici icm ico ics iic iii iim iio iis im- imc imi imm imo ims io- ioc ioi iom ioo ios is- isc isi ism iso iss m-o mc- mcc mci mcm mco mcs mi- mic mii mim mio mis mmc mmi mmm mmo mms moc moi mom moo mos msc msi msm mso mss o-i oc- occ oci ocm oco ocs oic oii oim oio ois om- omc omi omm omo oms oo- ooc ooi oom ooo oos os- osc osi osm oso oss scc sci scm sco scs sic sii sim sio sis smc smi smm smo sms soc soi som soo sos ss- ssc ssi ssm sso sss