-th c-- ccc ccd cce cch ccm cct cdc cdd cde cdh cdm cdt ce- cec ced cee ceh cem cet ch- chc chd che chh chm cht cmc cmd cme cmh cmm cmt ctc ctd cte cth ctm ctt dcc dcd dce dcm dct ddc ddd dde ddh ddm ddt de- dec ded dee deh dem det dh- dhc dhd dhe dhh dhm dht dmc dmd dme dmh dmm dmt dtc dtd dte dth dtm dtt ec- ecc ecd ece ech ecm ect ed- edc edd ede edh edm edt eec eed eee eem eet ehc ehd ehe ehh ehm eht em- emc emd eme emh emm emt etc etd ete eth etm ett hcc hcd hce hch hcm hct hdc hdd hde hdh hdm hdt he- hec hed hee heh hem het hhc hhd hhe hhh hhm hht hmc hmd hme hmh hmm hmt htc htd hte hth htm htt mc- mcc mcd mce mch mcm mct mdc mdd mde mdh mdm mdt mec med mee meh mem met mhc mhd mhh mhm mht mmc mmd mme mmh mmm mmt mtc mtd mte mth mtm mtt tcc tcd tce tch tcm tct tdc tdd tde tdh tdm tdt te- tec ted tee teh tem tet th- thc thd the thh thm tht tmc tmd tme tmh tmm tmt ttc ttd tte tth ttm ttt