-ic -th a-a a-b a-c a-i a-t aaa aab aac aad aah aai aat ab- aba abb abc abd abh abi abt ac- aca acb acc acd ach aci act ad- ada adb adc add adh adi adt aha ahb ahc ahd ahh ahi aht ai- aia aib aic aid aih aii ait at- ata atb atc atd ath ati att baa bab bac bad bah bai bat bba bbb bbc bbd bbh bbi bbt bca bcb bcc bcd bch bci bct bda bdb bdc bdd bdh bdi bdt bha bhb bhc bhd bhh bhi bht bi- bia bib bic bid bih bii bit bta btb btc btd bth bti btt c-- caa cab cac cad cah cai cat cba cbb cbc cbd cbh cbi cbt cca ccb ccc ccd cch cci cct cda cdb cdc cdd cdh cdi cdt ch- cha chb chc chd chh chi cht ci- cia cib cic cid cih cii cit cta ctb ctc ctd cth cti ctt daa dab dac dad dah dai dat dba dbb dbc dbd dbh dbi dbt dca dcb dcc dcd dci dct dda ddb ddc ddd ddh ddi ddt dh- dha dhb dhc dhd dhh dhi dht di- dia dib dic did dih dii dit dta dtb dtc dtd dth dti dtt h-i haa hab hac had hah hai hat hba hbb hbc hbd hbh hbi hbt hca hcb hcc hcd hch hci hct hda hdb hdc hdd hdh hdi hdt hha hhb hhc hhd hhh hhi hht hia hib hic hid hih hii hit hta htb htc htd hth hti htt i-d ia- iaa iab iac iad iah iai iat iba ibb ibc ibd ibh ibi ibt ica icb icc icd ich ici ict ida idb idc idd idh idi idt iha ihb ihc ihd ihh ihi iht iia iib iic iid iih iii iit ita itb itc itd ith iti itt taa tab tac tad tah tai tat tba tbb tbc tbd tbh tbi tbt tca tcb tcc tcd tch tci tct tda tdb tdc tdd tdh tdi tdt th- tha thb thc thd thh thi tht tia tib tic tid tih tii tit tta ttb ttc ttd tth tti ttt