-th c-- ccc ccd cce cch cco cct cdc cdd cde cdh cdo cdt ce- cec ced cee ceh ceo cet ch- chc chd che chh cho cht co- coc cod coe coh coo cot ctc ctd cte cth cto ctt dcc dcd dce dco dct ddc ddd dde ddh ddo ddt de- dec ded dee deh deo det dh- dhc dhd dhe dhh dho dht doc dod doe doh doo dot dtc dtd dte dth dto dtt ec- ecc ecd ece ech eco ect ed- edc edd ede edh edo edt eec eed eee eeo eet ehc ehd ehe ehh eho eht eo- eoc eod eoe eoh eoo eot etc etd ete eth eto ett hcc hcd hce hch hco hct hdc hdd hde hdh hdo hdt he- hec hed hee heh heo het hhc hhd hhe hhh hho hht hoc hod hoe hoh hoo hot htc htd hte hth hto htt oc- occ ocd och oco oct odc odd ode odh odo odt oec oed oee oeh oeo oet ohc ohd ohe ohh oho oht oo- ooc ood ooh ooo oot ot- otc otd ote oth oto ott tcc tcd tce tch tco tct tdc tdd tde tdh tdo tdt te- tec ted tee teh teo tet th- thc thd the thh tho tht to- toc tod toe toh too tot ttc ttd tte tth tto ttt