-ic c-- ccc ccd cce cci cco cdc cdd cde cdi cdo ce- cec ced cee cei ceo ci- cic cid cie cii cio co- coc cod coe coi coo dcc dcd dce dci dco ddc ddd dde ddi ddo de- dec ded dee dei deo di- dic did die dii dio doc dod doe doi doo ec- ecc ecd ece eci eco ed- edc edd ede edi edo eec eed eee eeo eic eid eie eii eio eo- eoc eod eoe eoi eoo i-d icc icd ice ici ico idc idd ide idi ido ie- iec ied iee iei iic iid iie iii iio io- ioc iod ioe ioi ioo o-i oc- occ ocd oci oco odc odd ode odi odo oec oed oee oei oeo oic oid oie oii oio oo- ooc ood ooi ooo