-th c-- ccc ccd cce cch ccl cct cdc cdd cde cdh cdl cdt ce- cec ced cee ceh cel cet ch- chc chd che chh chl cht cl- clc cld cle clh cll clt ctc ctd cte cth ctl ctt dcc dcd dce dcl dct ddc ddd dde ddh ddl ddt de- dec ded dee deh del det dh- dhc dhd dhe dhh dhl dht dl- dlc dld dle dlh dll dlt dtc dtd dte dth dtl dtt ec- ecc ecd ece ech ecl ect ed- edc edd ede edh edl edt eec eed eee eel eet ehc ehd ehe ehh ehl eht elc eld ele elh ell elt etc etd ete eth etl ett hcc hcd hce hch hcl hct hdc hdd hde hdh hdl hdt he- hec hed hee heh hel het hhc hhd hhe hhh hhl hht hlc hld hle hlh hll hlt htc htd hte hth htl htt lcc lcd lce lch lcl lct ldc ldd lde ldh ldl ldt lec led lee leh lel let lhc lhd lhh lht llc lld lle lll llt ltc ltd lte lth ltl ltt tcc tcd tce tch tcl tct tdc tdd tde tdh tdl tdt te- tec ted tee teh tel tet th- thc thd the thh thl tht tlc tld tle tlh tll tlt ttc ttd tte tth ttl ttt