-ic -th a-a a-b a-c a-i a-t aaa aab aac aah aai aan aao aat ab- aba abb abc abh abi abn abo abt ac- aca acb acc ach aci acn aco act aha ahb ahc ahh ahi ahn aho aht ai- aia aib aic aih aii ain aio ait an- ana anb anc anh ani ann ano ant aoa aob aoc aoh aoi aon aoo aot at- ata atb atc ath ati atn ato att baa bab bac bah bai ban bao bat bba bbb bbc bbh bbi bbn bbo bbt bca bcb bcc bch bci bcn bco bct bha bhb bhc bhh bhi bho bht bi- bia bib bic bih bii bin bio bit bna bnb bnc bni bnn bno bnt boa bob boc boh boi bon boo bot bta btb btc bth bti btn bto btt c-- caa cab cac cah cai can cao cat cba cbb cbc cbh cbi cbn cbo cbt cca ccb ccc cch cci ccn cco cct ch- cha chb chc chh chi chn cho cht ci- cia cib cic cih cii cin cio cit cn- cna cnb cnc cnh cni cnn cno cnt co- coa cob coc coh coi con coo cot cta ctb ctc cth cti ctn cto ctt h-i haa hab hac hah hai han hao hat hba hbb hbc hbh hbi hbn hbo hbt hca hcb hcc hch hci hcn hco hct hha hhb hhc hhh hhi hhn hho hht hia hib hic hih hii hin hio hit hna hnb hnc hnh hnn hno hnt hoa hob hoc hoh hoi hon hoo hot hta htb htc hth hti htn hto htt ia- iaa iab iac iah iai ian iao iat iba ibb ibc ibh ibi ibn ibo ibt ica icb icc ich ici icn ico ict iha ihb ihc ihh ihi ihn iho iht iia iib iic iih iii iin iio iit in- ina inb inc inh ini inn ino int io- ioa iob ioc ioh ioi ion ioo iot ita itb itc ith iti itn ito itt n-i naa nab nac nah nai nan nao nat nba nbb nbc nbi nbn nbo nbt nca ncb ncc nch nci ncn nco nct nha nhb nhc nhh nhi nhn nht nia nib nic nih nii nin nio nit nna nnb nnc nnh nni nnn nno nnt no- noa nob noc noh noi non noo not nta ntb ntc nth nti ntn nto ntt o-i oaa oab oac oah oai oan oao oat ob- oba obb obc obh obi obn obo obt oc- oca ocb occ och oci ocn oco oct oha ohc ohh ohi ohn oho oht oia oib oic oii oin oio oit on- ona onb onc onh oni onn ono ont oo- ooa oob ooc ooh ooi oon ooo oot ot- ota otb otc oth oti otn oto ott taa tab tac tah tai tan tao tat tba tbb tbc tbh tbi tbn tbo tbt tca tcb tcc tch tci tcn tco tct th- tha thb thc thh thi thn tho tht tia tib tic tih tii tin tio tit tna tnb tnc tnh tni tnn tno tnt to- toa tob toc toh toi ton too tot tta ttb ttc tth tti ttn tto ttt