-er -th c-- ccc cce cch ccn ccr cct ce- cec cee ceh cen cer cet ch- chc che chh chn chr cht cn- cnc cne cnh cnn cnr cnt crc cre crh crn crr crt ctc cte cth ctn ctr ctt ec- ecc ece ech ecn ecr ect eec eee een eer eet ehc ehe ehh ehn ehr eht en- enc ene enh enn enr ent erc ere erh ern err ert etc ete eth etn etr ett hcc hce hch hcn hcr hct he- hec hee heh hen her het hhc hhe hhh hhn hhr hht hnc hne hnh hnn hnt hr- hrc hre hrh hrn hrr hrt htc hte hth htn htr htt ncc nce nch ncn ncr nct ne- nec nee neh nen ner net nhc nhe nhh nhn nhr nht nnc nne nnh nnn nnt nrc nre nrn nrr nrt ntc nte nth ntn ntr ntt rcc rce rch rcn rcr rct re- rec ree reh ren rer ret rh- rhc rhe rhh rhn rhr rht rnc rnh rnn rnr rnt rrc rrh rrn rrr rrt rtc rte rtn rtr rtt tcc tce tch tcn tcr tct te- tec tee teh ten ter tet th- thc the thh thn thr tht tnc tne tnh tnn tnr tnt trc tre trh trn trr trt ttc tte tth ttn ttr ttt