-th a-a a-c a-t aaa aac aad aae aaf aah aas aat ac- aca acc acd ace acf ach acs act ad- ada adc add ade adf adh ads adt aea aec aed aee aef aeh aes aet af- afa afc afd afe aff afh afs aft aha ahc ahd ahe ahf ahh ahs aht as- asa asc asd ase asf ash ass ast at- ata atc atd ate atf ath ats att c-- caa cac cad cae caf cah cas cat cca ccc ccd cce ccf cch ccs cct cda cdc cdd cde cdf cdh cds cdt ce- cea cec ced cee cef ceh ces cet cfa cfc cfd cfe cff cfh cfs cft ch- cha chc chd che chf chh chs cht csa csc csd cse csf csh css cst cta ctc ctd cte ctf cth cts ctt daa dac dad dae daf dah das dat dca dcc dcd dce dcf dcs dct dda ddc ddd dde ddf ddh dds ddt de- dea dec ded dee def deh des det dfa dfc dfd dfe dff dfh dfs dft dh- dha dhc dhd dhe dhf dhh dhs dht dsa dsc dsd dse dsf dsh dss dst dta dtc dtd dte dtf dth dts dtt eaa eac ead eae eaf eah eas eat ec- eca ecc ecd ece ecf ech ecs ect ed- eda edc edd ede edf edh eds edt eea eec eed eee eef ees eet ef- efa efc efd efe eff efh efs eft eha ehc ehd ehe ehf ehh ehs eht es- esa esc esd ese esf esh ess est eta etc etd ete etf eth ets ett faa fac fad fae faf fah fas fat fca fcc fcd fce fcf fcs fct fda fdc fdd fde fdf fdh fds fdt fea fec fed fee fef feh fes fet ffa ffc ffd ffe fff ffh ffs fft fha fhc fhe fhf fhh fhs fsa fsc fsd fse fsf fsh fss fst fta ftc ftd fte ftf fth fts ftt haa hac had hae haf hah has hat hca hcc hcd hce hcf hch hcs hct hda hdc hdd hde hdf hdh hds hdt he- hea hec hed hee hef heh hes het hfa hfc hfd hfe hff hfh hfs hft hha hhc hhd hhe hhf hhh hhs hht hsa hsc hsd hse hsf hsh hss hst hta htc htd hte htf hth hts htt saa sac sad sae saf sah sas sat sca scc scd sce scf sch scs sct sda sdc sdd sde sdf sdh sds sdt se- sea sec sed see sef seh ses set sfa sfc sfd sfe sff sfh sfs sft sh- sha shc shd she shf shh shs sht ss- ssa ssc ssd sse ssf ssh sss sst sta stc std ste stf sth sts stt taa tac tad tae taf tah tas tat tca tcc tcd tce tcf tch tcs tct tda tdc tdd tde tdf tdh tds tdt te- tea tec ted tee tef teh tes tet tfa tfc tfd tfe tff tfh tfs tft th- tha thc thd the thf thh ths tht tsa tsc tsd tse tsf tsh tss tst tta ttc ttd tte ttf tth tts ttt