-ic c-- ccc ccd cce cci ccm ccs cdc cdd cde cdi cdm cds ce- cec ced cee cei cem ces ci- cic cid cie cii cim cis cmc cmd cme cmi cmm cms csc csd cse csi csm css dcc dcd dce dci dcm dcs ddc ddd dde ddi ddm dds de- dec ded dee dei dem des di- dic did die dii dim dis dmc dmd dme dmi dmm dms dsc dsd dse dsi dsm dss ec- ecc ecd ece eci ecm ecs ed- edc edd ede edi edm eds eec eed eee eem ees eic eid eie eii eim eis em- emc emd eme emi emm ems es- esc esd ese esi esm ess i-d icc icd ice ici icm ics idc idd ide idi idm ids ie- iec ied iee iei iem ies iic iid iie iii iim iis im- imc imd ime imi imm ims is- isc isd ise isi ism iss mc- mcc mcd mce mci mcm mcs mdc mdd mde mdi mdm mds mec med mee mei mem mes mi- mic mid mie mii mim mis mmc mmd mme mmi mmm mms msc msd mse msi msm mss scc scd sce sci scm scs sdc sdd sde sdi sdm sds se- sec sed see sei sem ses sic sid sie sii sim sis smc smd sme smi smm sms ss- ssc ssd sse ssi ssm sss