-ic c-- ccc ccd cce ccf cci cck ccs cct cdc cdd cde cdf cdi cdk cds cdt ce- cec ced cee cef cei cek ces cet cfc cfd cfe cff cfi cfk cfs cft ci- cic cid cie cif cii cik cis cit ckc ckd cki cks ckt csc csd cse csf csi csk css cst ctc ctd cte ctf cti ctk cts ctt dcc dcd dce dcf dci dck dcs dct ddc ddd dde ddf ddi ddk dds ddt de- dec ded dee def dei dek des det dfc dfd dfe dff dfi dfk dfs dft di- dic did die dif dii dik dis dit dkc dke dki dkk dks dkt dsc dsd dse dsf dsi dsk dss dst dtc dtd dte dtf dti dtk dts dtt ec- ecc ecd ece ecf eci eck ecs ect ed- edc edd ede edf edi edk eds edt eec eed eee eef eek ees eet ef- efc efd efe eff efi efs eft eic eid eie eif eii eik eis eit ekc ekd eke ekf eki eks ekt es- esc esd ese esf esi esk ess est etc etd ete etf eti etk ets ett fcc fcd fce fcf fci fck fcs fct fdc fdd fde fdf fdi fdk fds fdt fec fed fee fef fei fek fes fet ffc ffd ffe fff ffi ffk ffs fft fic fid fie fif fii fik fis fit fkc fkf fki fkk fkt fsc fsd fse fsf fsi fsk fss fst ftc ftd fte ftf fti ftk fts ftt i-d i-f icc icd ice icf ici ick ics ict idc idd ide idf idi idk ids idt ie- iec ied iee ief iei iek ies iet ifc ifd ife iff ifi ifs ift iic iid iie iif iii iis iit ikc ike ikf iki ikk iks ikt is- isc isd ise isf isi isk iss ist itc itd ite itf iti itk its itt k-t kcc kcd kce kci kck kcs kct kdc kde kdf kdk kds kdt ke- kec ked kee kef kei kek kes ket kfc kfd kff kfi kfs kic kid kie kif kii kik kis kit kkc kke kki kkk kks kkt ksc ksd kse ksf ksi ksk kss kst ktc kte ktf ktk kts ktt scc scd sce scf sci sck scs sct sdc sdd sde sdf sdi sdk sds sdt se- sec sed see sef sei sek ses set sfc sfd sfe sff sfi sfk sfs sft sic sid sie sif sii sik sis sit sk- skc skd ske skf ski skk sks skt ss- ssc ssd sse ssf ssi ssk sss sst stc std ste stf sti stk sts stt tcc tcd tce tcf tci tck tcs tct tdc tdd tde tdf tdi tdk tds tdt te- tec ted tee tef tei tek tes tet tfc tfd tfe tff tfi tfk tfs tft tic tid tie tif tii tik tis tit tkc tke tkk tks tkt tsc tsd tse tsf tsi tsk tss tst ttc ttd tte ttf tti ttk tts ttt