-ic c-- ccc ccd cce cci cco ccs cct cdc cdd cde cdi cdo cds cdt ce- cec ced cee cei ceo ces cet ci- cic cid cie cii cio cis cit co- coc cod coe coi coo cos cot csc csd cse csi cso css cst ctc ctd cte cti cto cts ctt dcc dcd dce dci dco dcs dct ddc ddd dde ddi ddo dds ddt de- dec ded dee dei deo des det di- dic did die dii dio dis dit doc dod doe doi doo dos dot dsc dsd dse dsi dso dss dst dtc dtd dte dti dto dts dtt ec- ecc ecd ece eci eco ecs ect ed- edc edd ede edi edo eds edt eec eed eee eeo ees eet eic eid eie eii eio eis eit eo- eoc eod eoe eoi eoo eos eot es- esc esd ese esi eso ess est etc etd ete eti eto ets ett i-d icc icd ice ici ico ics ict idc idd ide idi ido ids idt ie- iec ied iee iei ies iet iic iid iie iii iio iis iit io- ioc iod ioe ioi ioo ios iot is- isc isd ise isi iso iss ist itc itd ite iti ito its itt o-i oc- occ ocd oci oco ocs oct odc odd ode odi odo ods odt oec oed oee oei oeo oes oet oic oid oie oii oio ois oit oo- ooc ood ooi ooo oos oot os- osc osd ose osi oso oss ost ot- otc otd ote oti oto ots ott scc scd sce sci sco scs sct sdc sdd sde sdi sdo sds sdt se- sec sed see sei seo ses set sic sid sie sii sio sis sit soc sod soe soi soo sos sot ss- ssc ssd sse ssi sso sss sst stc std ste sti sto sts stt tcc tcd tce tci tco tcs tct tdc tdd tde tdi tdo tds tdt te- tec ted tee tei teo tes tet tic tid tie tii tio tis tit to- toc tod toe toi too tos tot tsc tsd tse tsi tso tss tst ttc ttd tte tti tto tts ttt