-th a-a a-b a-t aaa aab aad aae aaf aah aak aao aat ab- aba abb abd abe abf abh abk abo abt ad- ada adb add ade adf adh adk ado adt aea aeb aed aee aef aeh aek aeo aet af- afa afb afd afe aff afh afk afo aft aha ahb ahd ahe ahf ahh ahk aho aht aka akb akd ake akh akk ako aoa aob aod aoe aof aoh aok aoo aot at- ata atb atd ate atf ath ato att baa bab bad bae baf bah bak bao bat bba bbb bbd bbe bbf bbh bbk bbo bbt bda bdb bdd bde bdf bdh bdk bdo bdt be- bea beb bed bee bef beh bek beo bet bfa bfb bfd bfe bff bfh bfo bft bha bhb bhd bhe bhf bhh bhk bho bht bka bkb bke bkf bkk bko bkt boa bob bod boe bof boh bok boo bot bta btb btd bte btf bth btk bto btt daa dab dad dae daf dah dak dao dat dba dbb dbd dbe dbf dbh dbk dbo dbt dda ddb ddd dde ddf ddh ddk ddo ddt de- dea deb ded dee def deh dek deo det dfa dfb dfd dfe dff dfh dfk dfo dft dh- dha dhb dhd dhe dhf dhh dhk dho dht dka dkb dke dkk dko dkt doa dob dod doe dof doh dok doo dot dta dtb dtd dte dtf dth dtk dto dtt eaa eab ead eae eaf eah eak eao eat eba ebb ebd ebe ebf ebh ebk ebo ebt ed- eda edb edd ede edf edh edk edo edt eea eeb eed eee eef eek eeo eet ef- efa efb efd efe eff efh efo eft eha ehb ehd ehe ehf ehh eho eht eka ekb ekd eke ekf ekh eko ekt eo- eoa eob eod eoe eof eoh eok eoo eot eta etb etd ete etf eth etk eto ett faa fab fad fae faf fah fak fao fat fba fbb fbd fbe fbf fbh fbk fbo fbt fda fdb fdd fde fdf fdh fdk fdo fdt fea feb fed fee fef feh fek feo fet ffa ffd ffe fff ffh ffk ffo fft fha fhb fhe fhf fhh fho fka fkb fkf fkk fkt foa fob foe fof foh fok foo fot fta ftb ftd fte ftf fth ftk fto ftt haa hab had hae haf hah hak hao hat hba hbb hbd hbe hbf hbh hbk hbo hbt hda hdb hdd hde hdf hdh hdk hdo hdt he- hea heb hed hee hef heh hek heo het hfa hfb hfd hfe hff hfh hfk hfo hft hha hhb hhd hhe hhf hhh hhk hho hht hka hkb hkd hkf hkh hkk hko hkt hoa hob hod hoe hof hoh hok hoo hot hta htb htd hte htf hth htk hto htt k-t ka- kaa kab kad kae kaf kah kak kao kat kba kbb kbd kbe kbf kbh kbk kbo kda kdb kde kdf kdh kdk kdo kdt ke- kea keb ked kee kef keh kek keo ket kfa kfd kff kfh kfo kha khe khf khh khk kho kkb kke kkh kkk kkt koa kob kod koe kof koh kok koo kot kta ktb kte ktf kth ktk kto ktt oaa oab oad oae oaf oah oak oao oat ob- oba obb obd obe obf obh obk obo obt oda odb odd ode odf odh odo odt oea oeb oed oee oef oeh oeo oet of- ofa ofb ofd ofe off ofo oft oha ohd ohe ohf ohh oho oht oka okb okd oke okk oko oo- ooa oob ood oof ooh ook ooo oot ot- ota otb otd ote otf oth otk oto ott taa tab tad tae taf tah tak tao tat tba tbb tbd tbe tbf tbh tbk tbo tbt tda tdb tdd tde tdf tdh tdk tdo tdt te- tea teb ted tee tef teh tek teo tet tfa tfb tfd tfe tff tfh tfk tfo tft th- tha thb thd the thf thh thk tho tht tka tkb tke tkk tko tkt to- toa tob tod toe tof toh tok too tot tta ttb ttd tte ttf tth ttk tto ttt