-ic c-- ccc ccd cce cci cco ccs cdc cdd cde cdi cdo cds ce- cec ced cee cei ceo ces ci- cic cid cie cii cio cis co- coc cod coe coi coo cos csc csd cse csi cso css dcc dcd dce dci dco dcs ddc ddd dde ddi ddo dds de- dec ded dee dei deo des di- dic did die dii dio dis doc dod doe doi doo dos dsc dsd dse dsi dso dss ec- ecc ecd ece eci eco ecs ed- edc edd ede edi edo eds eec eed eee eeo ees eic eid eie eii eio eis eo- eoc eod eoe eoi eoo eos es- esc esd ese esi eso ess i-d icc icd ice ici ico ics idc idd ide idi ido ids ie- iec ied iee iei ies iic iid iie iii iio iis io- ioc iod ioe ioi ioo ios is- isc isd ise isi iso iss o-i oc- occ ocd oci oco ocs odc odd ode odi odo ods oec oed oee oei oeo oes oic oid oie oii oio ois oo- ooc ood ooi ooo oos os- osc osd ose osi oso oss scc scd sce sci sco scs sdc sdd sde sdi sdo sds se- sec sed see sei seo ses sic sid sie sii sio sis soc sod soe soi soo sos ss- ssc ssd sse ssi sso sss