-ic c-- ccc ccd cce cci ccm cco ccs cdc cdd cde cdi cdm cdo cds ce- cec ced cee cei cem ceo ces ci- cic cid cie cii cim cio cis cmc cmd cme cmi cmm cmo cms co- coc cod coe coi com coo cos csc csd cse csi csm cso css dcc dcd dce dci dcm dco dcs ddc ddd dde ddi ddm ddo dds de- dec ded dee dei dem deo des di- dic did die dii dim dio dis dmc dmd dme dmi dmm dmo dms doc dod doe doi dom doo dos dsc dsd dse dsi dsm dso dss ec- ecc ecd ece eci ecm eco ecs ed- edc edd ede edi edm edo eds eec eed eee eem eeo ees eic eid eie eii eim eio eis em- emc emd eme emi emm emo ems eo- eoc eod eoe eoi eom eoo eos es- esc esd ese esi esm eso ess i-d icc icd ice ici icm ico ics idc idd ide idi idm ido ids ie- iec ied iee iei iem ies iic iid iie iii iim iio iis im- imc imd ime imi imm imo ims io- ioc iod ioe ioi iom ioo ios is- isc isd ise isi ism iso iss m-o mc- mcc mcd mce mci mcm mco mcs mdc mdd mde mdi mdm mdo mds mec med mee mei mem meo mes mi- mic mid mie mii mim mio mis mmc mmd mme mmi mmm mmo mms moc mod moe moi mom moo mos msc msd mse msi msm mso mss o-i oc- occ ocd oci ocm oco ocs odc odd ode odi odm odo ods oec oed oee oei oem oeo oes oic oid oie oii oim oio ois om- omc omd ome omi omm omo oms oo- ooc ood ooi oom ooo oos os- osc osd ose osi osm oso oss scc scd sce sci scm sco scs sdc sdd sde sdi sdm sdo sds se- sec sed see sei sem seo ses sic sid sie sii sim sio sis smc smd sme smi smm smo sms soc sod soe soi som soo sos ss- ssc ssd sse ssi ssm sso sss