-th a-a a-c a-t aaa aac aad aah aao aat ac- aca acc acd ach aco act ad- ada adc add adh ado adt aha ahc ahd ahh aho aht aoa aoc aod aoh aoo aot at- ata atc atd ath ato att c-- caa cac cad cah cao cat cca ccc ccd cch cco cct cda cdc cdd cdh cdo cdt ch- cha chc chd chh cho cht co- coa coc cod coh coo cot cta ctc ctd cth cto ctt daa dac dad dah dao dat dca dcc dcd dco dct dda ddc ddd ddh ddo ddt dh- dha dhc dhd dhh dho dht doa doc dod doh doo dot dta dtc dtd dth dto dtt haa hac had hah hao hat hca hcc hcd hch hco hct hda hdc hdd hdh hdo hdt hha hhc hhd hhh hho hht hoa hoc hod hoh hoo hot hta htc htd hth hto htt oaa oac oad oah oao oat oc- oca occ ocd och oco oct oda odc odd odh odo odt oha ohc ohd ohh oho oht oo- ooa ooc ood ooh ooo oot ot- ota otc otd oth oto ott taa tac tad tah tao tat tca tcc tcd tch tco tct tda tdc tdd tdh tdo tdt th- tha thc thd thh tho tht to- toa toc tod toh too tot tta ttc ttd tth tto ttt