-th a-a a-b a-i a-t aaa aab aah aai aan aao aat ab- aba abb abh abi abn abo abt aha ahb ahh ahi ahn aho aht ai- aia aib aih aii ain aio ait an- ana anb anh ani ann ano ant aoa aob aoh aoi aon aoo aot at- ata atb ath ati atn ato att baa bab bah bai ban bao bat bba bbb bbh bbi bbn bbo bbt bha bhb bhh bhi bho bht bi- bia bib bih bii bin bio bit bna bnb bni bnn bno bnt boa bob boh boi bon boo bot bta btb bth bti btn bto btt h-i haa hab hah hai han hao hat hba hbb hbh hbi hbn hbo hbt hha hhb hhh hhi hhn hho hht hia hib hih hii hin hio hit hna hnb hnh hnn hno hnt hoa hob hoh hoi hon hoo hot hta htb hth hti htn hto htt ia- iaa iab iah iai ian iao iat iba ibb ibh ibi ibn ibo ibt iha ihb ihh ihi ihn iho iht iia iib iih iii iin iio iit in- ina inb inh ini inn ino int io- ioa iob ioh ioi ion ioo iot ita itb ith iti itn ito itt n-i naa nab nah nai nan nao nat nba nbb nbi nbn nbo nbt nha nhb nhh nhi nhn nht nia nib nih nii nin nio nit nna nnb nnh nni nnn nno nnt no- noa nob noh noi non noo not nta ntb nth nti ntn nto ntt o-i oaa oab oah oai oan oao oat ob- oba obb obh obi obn obo obt oha ohh ohi ohn oho oht oia oib oii oin oio oit on- ona onb onh oni onn ono ont oo- ooa oob ooh ooi oon ooo oot ot- ota otb oth oti otn oto ott taa tab tah tai tan tao tat tba tbb tbh tbi tbn tbo tbt th- tha thb thh thi thn tho tht tia tib tih tii tin tio tit tna tnb tnh tni tnn tno tnt to- toa tob toh toi ton too tot tta ttb tth tti ttn tto ttt