-ic -th a-a a-b a-c a-i a-t aaa aab aac aad aae aah aai aat ab- aba abb abc abd abe abh abi abt ac- aca acb acc acd ace ach aci act ad- ada adb adc add ade adh adi adt aea aeb aec aed aee aeh aei aet aha ahb ahc ahd ahe ahh ahi aht ai- aia aib aic aid aie aih aii ait at- ata atb atc atd ate ath ati att baa bab bac bad bae bah bai bat bba bbb bbc bbd bbe bbh bbi bbt bca bcb bcc bcd bce bch bci bct bda bdb bdc bdd bde bdh bdi bdt be- bea beb bec bed bee beh bei bet bha bhb bhc bhd bhe bhh bhi bht bi- bia bib bic bid bie bih bii bit bta btb btc btd bte bth bti btt c-- caa cab cac cad cae cah cai cat cba cbb cbc cbd cbe cbh cbi cbt cca ccb ccc ccd cce cch cci cct cda cdb cdc cdd cde cdh cdi cdt ce- cea ceb cec ced cee ceh cei cet ch- cha chb chc chd che chh chi cht ci- cia cib cic cid cie cih cii cit cta ctb ctc ctd cte cth cti ctt daa dab dac dad dae dah dai dat dba dbb dbc dbd dbe dbh dbi dbt dca dcb dcc dcd dce dci dct dda ddb ddc ddd dde ddh ddi ddt de- dea deb dec ded dee deh dei det dh- dha dhb dhc dhd dhe dhh dhi dht di- dia dib dic did die dih dii dit dta dtb dtc dtd dte dth dti dtt eaa eab eac ead eae eah eai eat eba ebb ebc ebd ebe ebh ebi ebt ec- eca ecb ecc ecd ece ech eci ect ed- eda edb edc edd ede edh edi edt eea eeb eec eed eee eet eha ehb ehc ehd ehe ehh ehi eht eia eib eic eid eie eii eit eta etb etc etd ete eth eti ett h-i haa hab hac had hae hah hai hat hba hbb hbc hbd hbe hbh hbi hbt hca hcb hcc hcd hce hch hci hct hda hdb hdc hdd hde hdh hdi hdt he- hea heb hec hed hee heh hei het hha hhb hhc hhd hhe hhh hhi hht hia hib hic hid hie hih hii hit hta htb htc htd hte hth hti htt i-d ia- iaa iab iac iad iae iah iai iat iba ibb ibc ibd ibe ibh ibi ibt ica icb icc icd ice ich ici ict ida idb idc idd ide idh idi idt ie- iea iec ied iee iei iet iha ihb ihc ihd ihe ihh ihi iht iia iib iic iid iie iih iii iit ita itb itc itd ite ith iti itt taa tab tac tad tae tah tai tat tba tbb tbc tbd tbe tbh tbi tbt tca tcb tcc tcd tce tch tci tct tda tdb tdc tdd tde tdh tdi tdt te- tea teb tec ted tee teh tei tet th- tha thb thc thd the thh thi tht tia tib tic tid tie tih tii tit tta ttb ttc ttd tte tth tti ttt