-ic c-- ccc ccd cce cci ccs cdc cdd cde cdi cds ce- cec ced cee cei ces ci- cic cid cie cii cis csc csd cse csi css dcc dcd dce dci dcs ddc ddd dde ddi dds de- dec ded dee dei des di- dic did die dii dis dsc dsd dse dsi dss ec- ecc ecd ece eci ecs ed- edc edd ede edi eds eec eed eee ees eic eid eie eii eis es- esc esd ese esi ess i-d icc icd ice ici ics idc idd ide idi ids ie- iec ied iee iei ies iic iid iie iii iis is- isc isd ise isi iss scc scd sce sci scs sdc sdd sde sdi sds se- sec sed see sei ses sic sid sie sii sis ss- ssc ssd sse ssi sss