-ic c-- ccc ccd cce ccf cci cco ccs cdc cdd cde cdf cdi cdo cds ce- cec ced cee cef cei ceo ces cfc cfd cfe cff cfi cfo cfs ci- cic cid cie cif cii cio cis co- coc cod coe cof coi coo cos csc csd cse csf csi cso css dcc dcd dce dcf dci dco dcs ddc ddd dde ddf ddi ddo dds de- dec ded dee def dei deo des dfc dfd dfe dff dfi dfo dfs di- dic did die dif dii dio dis doc dod doe dof doi doo dos dsc dsd dse dsf dsi dso dss ec- ecc ecd ece ecf eci eco ecs ed- edc edd ede edf edi edo eds eec eed eee eef eeo ees ef- efc efd efe eff efi efo efs eic eid eie eif eii eio eis eo- eoc eod eoe eof eoi eoo eos es- esc esd ese esf esi eso ess fcc fcd fce fcf fci fco fcs fdc fdd fde fdf fdi fdo fds fec fed fee fef fei feo fes ffc ffd ffe fff ffi ffo ffs fic fid fie fif fii fis foc foe fof foi foo fos fsc fsd fse fsf fsi fso fss i-d i-f icc icd ice icf ici ico ics idc idd ide idf idi ido ids ie- iec ied iee ief iei ies ifc ifd ife iff ifi ifo ifs iic iid iie iif iii iio iis io- ioc iod ioe iof ioi ioo ios is- isc isd ise isf isi iso iss o-i oc- occ ocd ocf oci oco ocs odc odd ode odf odi odo ods oec oed oee oef oei oeo oes of- ofc ofd ofe off ofi ofo ofs oic oid oie oif oii oio ois oo- ooc ood oof ooi ooo oos os- osc osd ose osf osi oso oss scc scd sce scf sci sco scs sdc sdd sde sdf sdi sdo sds se- sec sed see sef sei seo ses sfc sfd sfe sff sfi sfo sfs sic sid sie sif sii sio sis soc sod soe sof soi soo sos ss- ssc ssd sse ssf ssi sso sss