-th c-- ccc ccd cce cch ccl ccs cct cdc cdd cde cdh cdl cds cdt ce- cec ced cee ceh cel ces cet ch- chc chd che chh chl chs cht cl- clc cld cle clh cll cls clt csc csd cse csh csl css cst ctc ctd cte cth ctl cts ctt dcc dcd dce dcl dcs dct ddc ddd dde ddh ddl dds ddt de- dec ded dee deh del des det dh- dhc dhd dhe dhh dhl dhs dht dl- dlc dld dle dlh dll dls dlt dsc dsd dse dsh dsl dss dst dtc dtd dte dth dtl dts dtt ec- ecc ecd ece ech ecl ecs ect ed- edc edd ede edh edl eds edt eec eed eee eel ees eet ehc ehd ehe ehh ehl ehs eht elc eld ele elh ell els elt es- esc esd ese esh esl ess est etc etd ete eth etl ets ett hcc hcd hce hch hcl hcs hct hdc hdd hde hdh hdl hds hdt he- hec hed hee heh hel hes het hhc hhd hhe hhh hhl hhs hht hlc hld hle hlh hll hls hlt hsc hsd hse hsh hsl hss hst htc htd hte hth htl hts htt lcc lcd lce lch lcl lcs lct ldc ldd lde ldh ldl lds ldt lec led lee leh lel les let lhc lhd lhh lhs lht llc lld lle lll lls llt lsc lsd lse lsh lsl lss lst ltc ltd lte lth ltl lts ltt scc scd sce sch scl scs sct sdc sdd sde sdh sdl sds sdt se- sec sed see seh sel ses set sh- shc shd she shh shl shs sht slc sld sle slh sll sls slt ss- ssc ssd sse ssh ssl sss sst stc std ste sth stl sts stt tcc tcd tce tch tcl tcs tct tdc tdd tde tdh tdl tds tdt te- tec ted tee teh tel tes tet th- thc thd the thh thl ths tht tlc tld tle tlh tll tls tlt tsc tsd tse tsh tsl tss tst ttc ttd tte tth ttl tts ttt