-th c-- ccc ccd cce cch ccp ccs cct cdc cdd cde cdh cdp cds cdt ce- cec ced cee ceh cep ces cet ch- chc chd che chh chp chs cht cpc cpd cpe cph cpp cps cpt csc csd cse csh csp css cst ctc ctd cte cth ctp cts ctt dcc dcd dce dcp dcs dct ddc ddd dde ddh ddp dds ddt de- dec ded dee deh dep des det dh- dhc dhd dhe dhh dhp dhs dht dpc dpd dpe dph dpp dps dpt dsc dsd dse dsh dsp dss dst dtc dtd dte dth dtp dts dtt ec- ecc ecd ece ech ecs ect ed- edc edd ede edh edp eds edt eec eed eee eep ees eet ehc ehd ehe ehh ehp ehs eht ep- epc epd epe eph epp eps ept es- esc esd ese esh esp ess est etc etd ete eth etp ets ett hcc hcd hce hch hcp hcs hct hdc hdd hde hdh hdp hds hdt he- hec hed hee heh hep hes het hhc hhd hhe hhh hhp hhs hht hpc hpd hpe hph hpp hps hpt hsc hsd hse hsh hsp hss hst htc htd hte hth htp hts htt p-p pcc pcd pce pch pcp pcs pct pdc pdd pde pdh pdp pds pdt pec ped pee peh pep pes pet phc phd phe php phs pht ppc ppd ppe pph ppp pps ppt ps- psc psd pse psh psp pss pst pt- ptc ptd pte pth ptp pts ptt scc scd sce sch scp scs sct sdc sdd sde sdh sdp sds sdt se- sec sed see seh sep ses set sh- shc shd she shh shp shs sht spc spd spe sph spp sps spt ss- ssc ssd sse ssh ssp sss sst stc std ste sth stp sts stt tcc tcd tce tch tcp tcs tct tdc tdd tde tdh tdp tds tdt te- tec ted tee teh tep tes tet th- thc thd the thh thp ths tht tpc tpd tpe tph tpp tps tpt tsc tsd tse tsh tsp tss tst ttc ttd tte tth ttp tts ttt