-ic c-- ccc ccd cce cci cck cco ccs cct cdc cdd cde cdi cdk cdo cds cdt ce- cec ced cee cei cek ceo ces cet ci- cic cid cie cii cik cio cis cit ckc ckd cki cko cks ckt co- coc cod coe coi cok coo cos cot csc csd cse csi csk cso css cst ctc ctd cte cti ctk cto cts ctt dcc dcd dce dci dck dco dcs dct ddc ddd dde ddi ddk ddo dds ddt de- dec ded dee dei dek deo des det di- dic did die dii dik dio dis dit dkc dke dki dkk dko dks dkt doc dod doe doi dok doo dos dot dsc dsd dse dsi dsk dso dss dst dtc dtd dte dti dtk dto dts dtt ec- ecc ecd ece eci eck eco ecs ect ed- edc edd ede edi edk edo eds edt eec eed eee eek eeo ees eet eic eid eie eii eik eio eis eit ekc ekd eke eki eko eks ekt eo- eoc eod eoe eoi eok eoo eos eot es- esc esd ese esi esk eso ess est etc etd ete eti etk eto ets ett i-d icc icd ice ici ick ico ics ict idc idd ide idi idk ido ids idt ie- iec ied iee iei iek ies iet iic iid iie iii iio iis iit ikc ike iki ikk iko iks ikt io- ioc iod ioe ioi ioo ios iot is- isc isd ise isi isk iso iss ist itc itd ite iti itk ito its itt k-t kcc kcd kce kci kck kcs kct kdc kde kdk kdo kds kdt ke- kec ked kee kei kek keo kes ket kic kid kie kii kik kio kis kit kkc kke kki kkk kks kkt koc kod koe koi kok koo kos kot ksc ksd kse ksi ksk kso kss kst ktc kte ktk kto kts ktt o-i oc- occ ocd oci ock oco ocs oct odc odd ode odi odo ods odt oec oed oee oei oeo oes oet oic oid oie oii oik oio ois oit okc okd oke oki okk oko oks oo- ooc ood ooi ook ooo oos oot os- osc osd ose osi osk oso oss ost ot- otc otd ote oti otk oto ots ott scc scd sce sci sck sco scs sct sdc sdd sde sdi sdk sdo sds sdt se- sec sed see sei sek seo ses set sic sid sie sii sik sio sis sit sk- skc skd ske ski skk sko sks skt soc sod soe soi sok soo sos sot ss- ssc ssd sse ssi ssk sso sss sst stc std ste sti stk sto sts stt tcc tcd tce tci tck tco tcs tct tdc tdd tde tdi tdk tdo tds tdt te- tec ted tee tei tek teo tes tet tic tid tie tii tik tio tis tit tkc tke tkk tko tks tkt to- toc tod toe toi tok too tos tot tsc tsd tse tsi tsk tso tss tst ttc ttd tte tti ttk tto tts ttt