-ic -th a-a a-b a-c a-i a-t aaa aab aac aah aai aan aat ab- aba abb abc abh abi abn abt ac- aca acb acc ach aci acn act aha ahb ahc ahh ahi ahn aht ai- aia aib aic aih aii ain ait an- ana anb anc anh ani ann ant at- ata atb atc ath ati atn att baa bab bac bah bai ban bat bba bbb bbc bbh bbi bbn bbt bca bcb bcc bch bci bcn bct bha bhb bhc bhh bhi bht bi- bia bib bic bih bii bin bit bna bnb bnc bni bnn bnt bta btb btc bth bti btn btt c-- caa cab cac cah cai can cat cba cbb cbc cbh cbi cbn cbt cca ccb ccc cch cci ccn cct ch- cha chb chc chh chi chn cht ci- cia cib cic cih cii cin cit cn- cna cnb cnc cnh cni cnn cnt cta ctb ctc cth cti ctn ctt h-i haa hab hac hah hai han hat hba hbb hbc hbh hbi hbn hbt hca hcb hcc hch hci hcn hct hha hhb hhc hhh hhi hhn hht hia hib hic hih hii hin hit hna hnb hnc hnh hnn hnt hta htb htc hth hti htn htt ia- iaa iab iac iah iai ian iat iba ibb ibc ibh ibi ibn ibt ica icb icc ich ici icn ict iha ihb ihc ihh ihi ihn iht iia iib iic iih iii iin iit in- ina inb inc inh ini inn int ita itb itc ith iti itn itt n-i naa nab nac nah nai nan nat nba nbb nbc nbi nbn nbt nca ncb ncc nch nci ncn nct nha nhb nhc nhh nhi nhn nht nia nib nic nih nii nin nit nna nnb nnc nnh nni nnn nnt nta ntb ntc nth nti ntn ntt taa tab tac tah tai tan tat tba tbb tbc tbh tbi tbn tbt tca tcb tcc tch tci tcn tct th- tha thb thc thh thi thn tht tia tib tic tih tii tin tit tna tnb tnc tnh tni tnn tnt tta ttb ttc tth tti ttn ttt