-ic c-- ccc ccd cce cci cco ccs cct ccx cdc cdd cde cdi cdo cds cdt cdx ce- cec ced cee cei ceo ces cet cex ci- cic cid cie cii cio cis cit cix co- coc cod coe coi coo cos cot cox csc csd cse csi cso css cst csx ctc ctd cte cti cto cts ctt ctx cxc cxi cxo cxs cxt cxx dcc dcd dce dci dco dcs dct dcx ddc ddd dde ddi ddo dds ddt ddx de- dec ded dee dei deo des det dex di- dic did die dii dio dis dit dix doc dod doe doi doo dos dot dox dsc dsd dse dsi dso dss dst dsx dtc dtd dte dti dto dts dtt dtx dxc dxd dxi dxo dxs dxt dxx ec- ecc ecd ece eci eco ecs ect ecx ed- edc edd ede edi edo eds edt edx eec eed eee eeo ees eet eex eic eid eie eii eio eis eit eix eo- eoc eod eoe eoi eoo eos eot es- esc esd ese esi eso ess est esx etc etd ete eti eto ets ett etx ex- exc exd exe exi exo exs ext exx i-d icc icd ice ici ico ics ict idc idd ide idi ido ids idt idx ie- iec ied iee iei ies iet iex iic iid iie iii iio iis iit iix io- ioc iod ioe ioi ioo ios iot is- isc isd ise isi iso iss ist itc itd ite iti ito its itt itx ixc ixe ixi o-i oc- occ ocd oci oco ocs oct ocx odc odd ode odi odo ods odt oec oed oee oei oeo oes oet oex oic oid oie oii oio ois oit oo- ooc ood ooi ooo oos oot oox os- osc osd ose osi oso oss ost osx ot- otc otd ote oti oto ots ott ox- oxc oxi oxo oxt oxx scc scd sce sci sco scs sct scx sdc sdd sde sdi sdo sds sdt se- sec sed see sei seo ses set sex sic sid sie sii sio sis sit six soc sod soe soi soo sos sot sox ss- ssc ssd sse ssi sso sss sst ssx stc std ste sti sto sts stt stx sxc sxi sxs sxt t-x tcc tcd tce tci tco tcs tct tcx tdc tdd tde tdi tdo tds tdt tdx te- tec ted tee tei teo tes tet tex tic tid tie tii tio tis tit tix to- toc tod toe toi too tos tot tox tsc tsd tse tsi tso tss tst tsx ttc ttd tte tti tto tts ttt ttx txe txi txs txt xcd xci xcx xdc xde xdi xds xdt xed xee xes xet xex xic xie xii xio xis xit xix xoc xod xoi xoo xos xot xox xsc xsi xss xst xtc xti xts xtx xxi xxo xxx