-th a-a a-b a-t aaa aab aad aae aah aan aao aat ab- aba abb abd abe abh abn abo abt ad- ada adb add ade adh adn ado adt aea aeb aed aee aeh aen aeo aet aha ahb ahd ahe ahh ahn aho aht an- ana anb and ane anh ann ano ant aoa aob aod aoe aoh aon aoo aot at- ata atb atd ate ath atn ato att baa bab bad bae bah ban bao bat bba bbb bbd bbe bbh bbn bbo bbt bda bdb bdd bde bdh bdo bdt be- bea beb bed bee beh ben beo bet bha bhb bhd bhe bhh bho bht bna bnb bnd bne bnn bno bnt boa bob bod boe boh bon boo bot bta btb btd bte bth btn bto btt daa dab dad dae dah dan dao dat dba dbb dbd dbe dbh dbn dbo dbt dda ddb ddd dde ddh ddn ddo ddt de- dea deb ded dee deh den deo det dh- dha dhb dhd dhe dhh dho dht dna dnb dnd dne dnh dnn dno dnt doa dob dod doe doh don doo dot dta dtb dtd dte dth dtn dto dtt eaa eab ead eae eah ean eao eat eba ebb ebd ebe ebh ebn ebo ebt ed- eda edb edd ede edh edn edo edt eea eeb eed eee een eeo eet eha ehb ehd ehe ehh ehn eho eht en- ena enb end ene enh enn eno ent eo- eoa eob eod eoe eoh eon eoo eot eta etb etd ete eth etn eto ett haa hab had hae hah han hao hat hba hbb hbd hbe hbh hbn hbo hbt hda hdb hdd hde hdh hdn hdo hdt he- hea heb hed hee heh hen heo het hha hhb hhd hhe hhh hhn hho hht hna hnb hnd hne hnh hnn hno hnt hoa hob hod hoe hoh hon hoo hot hta htb htd hte hth htn hto htt naa nab nad nae nah nan nao nat nba nbb nbd nbe nbn nbo nbt nda ndb ndd nde ndh ndn ndo ndt ne- nea neb ned nee neh nen neo net nha nhb nhd nhe nhh nhn nht nna nnb nne nnh nnn nno nnt no- noa nob nod noe noh non noo not nta ntb ntd nte nth ntn nto ntt oaa oab oad oae oah oan oao oat ob- oba obb obd obe obh obn obo obt oda odb odd ode odh odn odo odt oea oeb oed oee oeh oen oeo oet oha ohd ohe ohh ohn oho oht on- ona onb ond one onh onn ono ont oo- ooa oob ood ooh oon ooo oot ot- ota otb otd ote oth otn oto ott taa tab tad tae tah tan tao tat tba tbb tbd tbe tbh tbn tbo tbt tda tdb tdd tde tdh tdn tdo tdt te- tea teb ted tee teh ten teo tet th- tha thb thd the thh thn tho tht tna tnb tnd tne tnh tnn tno tnt to- toa tob tod toe toh ton too tot tta ttb ttd tte tth ttn tto ttt