-th a-a a-c a-t aaa aac aad aah aar aas aat ac- aca acc acd ach acr acs act ad- ada adc add adh adr ads adt aha ahc ahd ahh ahr ahs aht ar- ara arc ard arh arr ars art as- asa asc asd ash asr ass ast at- ata atc atd ath atr ats att c-- caa cac cad cah car cas cat cca ccc ccd cch ccr ccs cct cda cdc cdd cdh cdr cds cdt ch- cha chc chd chh chr chs cht cra crc crd crh crr crs crt csa csc csd csh csr css cst cta ctc ctd cth ctr cts ctt daa dac dad dah dar das dat dca dcc dcd dcr dcs dct dda ddc ddd ddh ddr dds ddt dh- dha dhc dhd dhh dhr dhs dht dra drc drd drr drs drt dsa dsc dsd dsh dsr dss dst dta dtc dtd dth dtr dts dtt haa hac had hah har has hat hca hcc hcd hch hcr hcs hct hda hdc hdd hdh hdr hds hdt hha hhc hhd hhh hhr hhs hht hr- hra hrc hrd hrh hrr hrs hrt hsa hsc hsd hsh hsr hss hst hta htc htd hth htr hts htt ra- raa rac rad rah rar ras rat rca rcc rcd rch rcr rcs rct rda rdc rdd rdh rdr rds rdt rh- rha rhc rhd rhh rhr rhs rht rra rrc rrd rrh rrr rrs rrt rsa rsc rsd rsh rsr rss rst rta rtc rtd rtr rts rtt saa sac sad sah sar sas sat sca scc scd sch scr scs sct sda sdc sdd sdh sdr sds sdt sh- sha shc shd shh shr shs sht sr- sra src srd srh srr srs srt ss- ssa ssc ssd ssh ssr sss sst sta stc std sth str sts stt taa tac tad tah tar tas tat tca tcc tcd tch tcr tcs tct tda tdc tdd tdh tdr tds tdt th- tha thc thd thh thr ths tht tra trc trd trh trr trs trt tsa tsc tsd tsh tsr tss tst tta ttc ttd tth ttr tts ttt