-th c-- ccc cce cch cck ccs cct ce- cec cee ceh cek ces cet ch- chc che chh chk chs cht ckc ckh cks ckt csc cse csh csk css cst ctc cte cth ctk cts ctt ec- ecc ece ech eck ecs ect eec eee eek ees eet ehc ehe ehh ehs eht ekc eke ekh eks ekt es- esc ese esh esk ess est etc ete eth etk ets ett hcc hce hch hck hcs hct he- hec hee heh hek hes het hhc hhe hhh hhk hhs hht hkh hkk hks hkt hsc hse hsh hsk hss hst htc hte hth htk hts htt k-t kcc kce kch kck kcs kct ke- kec kee keh kek kes ket khe khh khk khs kkc kke kkh kkk kks kkt ksc kse ksh ksk kss kst ktc kte kth ktk kts ktt scc sce sch sck scs sct se- sec see seh sek ses set sh- shc she shh shk shs sht sk- skc ske skh skk sks skt ss- ssc sse ssh ssk sss sst stc ste sth stk sts stt tcc tce tch tck tcs tct te- tec tee teh tek tes tet th- thc the thh thk ths tht tkc tke tkk tks tkt tsc tse tsh tsk tss tst ttc tte tth ttk tts ttt