-er -th a-a a-c a-t aaa aac aad aae aah aar aas aat ac- aca acc acd ace ach acr acs act ad- ada adc add ade adh adr ads adt aea aec aed aee aeh aer aes aet aha ahc ahd ahe ahh ahr ahs aht ar- ara arc ard are arh arr ars art as- asa asc asd ase ash asr ass ast at- ata atc atd ate ath atr ats att c-- caa cac cad cae cah car cas cat cca ccc ccd cce cch ccr ccs cct cda cdc cdd cde cdh cdr cds cdt ce- cea cec ced cee ceh cer ces cet ch- cha chc chd che chh chr chs cht cra crc crd cre crh crr crs crt csa csc csd cse csh csr css cst cta ctc ctd cte cth ctr cts ctt daa dac dad dae dah dar das dat dca dcc dcd dce dcr dcs dct dda ddc ddd dde ddh ddr dds ddt de- dea dec ded dee deh der des det dh- dha dhc dhd dhe dhh dhr dhs dht dra drc drd dre drr drs drt dsa dsc dsd dse dsh dsr dss dst dta dtc dtd dte dth dtr dts dtt eaa eac ead eae eah ear eas eat ec- eca ecc ecd ece ech ecr ecs ect ed- eda edc edd ede edh edr eds edt eea eec eed eee eer ees eet eha ehc ehd ehe ehh ehr ehs eht era erc erd ere erh err ers ert es- esa esc esd ese esh esr ess est eta etc etd ete eth etr ets ett haa hac had hae hah har has hat hca hcc hcd hce hch hcr hcs hct hda hdc hdd hde hdh hdr hds hdt he- hea hec hed hee heh her hes het hha hhc hhd hhe hhh hhr hhs hht hr- hra hrc hrd hre hrh hrr hrs hrt hsa hsc hsd hse hsh hsr hss hst hta htc htd hte hth htr hts htt ra- raa rac rad rae rah rar ras rat rca rcc rcd rce rch rcr rcs rct rda rdc rdd rde rdh rdr rds rdt re- rea rec red ree reh rer res ret rh- rha rhc rhd rhe rhh rhr rhs rht rra rrc rrd rrh rrr rrs rrt rsa rsc rsd rse rsh rsr rss rst rta rtc rtd rte rtr rts rtt saa sac sad sae sah sar sas sat sca scc scd sce sch scr scs sct sda sdc sdd sde sdh sdr sds sdt se- sea sec sed see seh ser ses set sh- sha shc shd she shh shr shs sht sr- sra src srd sre srh srr srs srt ss- ssa ssc ssd sse ssh ssr sss sst sta stc std ste sth str sts stt taa tac tad tae tah tar tas tat tca tcc tcd tce tch tcr tcs tct tda tdc tdd tde tdh tdr tds tdt te- tea tec ted tee teh ter tes tet th- tha thc thd the thh thr ths tht tra trc trd tre trh trr trs trt tsa tsc tsd tse tsh tsr tss tst tta ttc ttd tte tth ttr tts ttt