-th a-a a-c a-t aaa aac aad aah aan aas aat ac- aca acc acd ach acn acs act ad- ada adc add adh adn ads adt aha ahc ahd ahh ahn ahs aht an- ana anc and anh ann ans ant as- asa asc asd ash asn ass ast at- ata atc atd ath atn ats att c-- caa cac cad cah can cas cat cca ccc ccd cch ccn ccs cct cda cdc cdd cdh cdn cds cdt ch- cha chc chd chh chn chs cht cn- cna cnc cnd cnh cnn cns cnt csa csc csd csh csn css cst cta ctc ctd cth ctn cts ctt daa dac dad dah dan das dat dca dcc dcd dcn dcs dct dda ddc ddd ddh ddn dds ddt dh- dha dhc dhd dhh dhs dht dna dnc dnd dnh dnn dns dnt dsa dsc dsd dsh dsn dss dst dta dtc dtd dth dtn dts dtt haa hac had hah han has hat hca hcc hcd hch hcn hcs hct hda hdc hdd hdh hdn hds hdt hha hhc hhd hhh hhn hhs hht hna hnc hnd hnh hnn hns hnt hsa hsc hsd hsh hsn hss hst hta htc htd hth htn hts htt naa nac nad nah nan nas nat nca ncc ncd nch ncn ncs nct nda ndc ndd ndh ndn nds ndt nha nhc nhd nhh nhn nhs nht nna nnc nnh nnn nns nnt nsa nsc nsd nsh nsn nss nst nta ntc ntd nth ntn nts ntt saa sac sad sah san sas sat sca scc scd sch scn scs sct sda sdc sdd sdh sdn sds sdt sh- sha shc shd shh shn shs sht sna snc snd snn sns snt ss- ssa ssc ssd ssh ssn sss sst sta stc std sth stn sts stt taa tac tad tah tan tas tat tca tcc tcd tch tcn tcs tct tda tdc tdd tdh tdn tds tdt th- tha thc thd thh thn ths tht tna tnc tnd tnh tnn tns tnt tsa tsc tsd tsh tsn tss tst tta ttc ttd tth ttn tts ttt