-ic c-- ccc cce cci cck ccm cco ccs ce- cec cee cei cek cem ceo ces ci- cic cie cii cik cim cio cis ckc cki ckm cko cks cmc cme cmi cmk cmm cmo cms co- coc coe coi cok com coo cos csc cse csi csk csm cso css ec- ecc ece eci eck ecm eco ecs eec eee eek eem eeo ees eic eie eii eik eim eio eis ekc eke eki eko eks em- emc eme emi emk emm emo ems eo- eoc eoe eoi eok eom eoo eos es- esc ese esi esk esm eso ess icc ice ici ick icm ico ics ie- iec iee iei iek iem ies iic iie iii iim iio iis ikc ike iki ikk iko iks im- imc ime imi imm imo ims io- ioc ioe ioi iom ioo ios is- isc ise isi isk ism iso iss kcc kce kci kck kcm kcs ke- kec kee kei kek kem keo kes kic kie kii kik kim kio kis kkc kke kki kkk kkm kks kmc kme kmi kmk kmm kmo kms koc koe koi kok kom koo kos ksc kse ksi ksk ksm kso kss m-o mc- mcc mce mci mck mcm mco mcs mec mee mei mek mem meo mes mi- mic mie mii mik mim mio mis mkc mke mkk mkm mko mks mmc mme mmi mmk mmm mmo mms moc moe moi mok mom moo mos msc mse msi msk msm mso mss o-i oc- occ oci ock ocm oco ocs oec oee oei oem oeo oes oic oie oii oik oim oio ois okc oke oki okk oko oks om- omc ome omi omm omo oms oo- ooc ooi ook oom ooo oos os- osc ose osi osk osm oso oss scc sce sci sck scm sco scs se- sec see sei sek sem seo ses sic sie sii sik sim sio sis sk- skc ske ski skk skm sko sks smc sme smi smk smm smo sms soc soe soi sok som soo sos ss- ssc sse ssi ssk ssm sso sss