-th a-a a-b a-i a-t aaa aab aaf aah aai aar aat ab- aba abb abf abh abi abr abt af- afa afb aff afh afi afr aft aha ahb ahf ahh ahi ahr aht ai- aia aib aif aih aii air ait ar- ara arb arf arh ari arr art at- ata atb atf ath ati atr att baa bab baf bah bai bar bat bba bbb bbf bbh bbi bbr bbt bfa bfb bff bfh bfi bfr bft bha bhb bhf bhh bhi bhr bht bi- bia bib bif bih bii bir bit bra brb brf brh bri brr brt bta btb btf bth bti btr btt faa fab faf fah fai far fat fba fbb fbf fbh fbi fbr fbt ffa fff ffh ffi ffr fft fha fhb fhf fhh fhi fhr fia fib fif fih fii fir fit fra frb frf frh fri frr frt fta ftb ftf fth fti ftr ftt h-i haa hab haf hah hai har hat hba hbb hbf hbh hbi hbr hbt hfa hfb hff hfh hfi hfr hft hha hhb hhf hhh hhi hhr hht hia hib hif hih hii hir hit hr- hra hrb hrf hrh hri hrr hrt hta htb htf hth hti htr htt i-f ia- iaa iab iaf iah iai iar iat iba ibb ibf ibh ibi ibr ibt ifa ifb iff ifi ifr ift iha ihb ihf ihh ihi ihr iht iia iib iif iih iii iir iit ir- ira irb irf iri irr irt ita itb itf ith iti itt ra- raa rab raf rah rai rar rat rba rbb rbf rbh rbi rbr rbt rfa rfb rff rfh rfi rfr rft rh- rha rhb rhf rhh rhi rhr rht ria rib rif rih rii rir rit rra rrb rrf rrh rri rrr rrt rta rtb rtf rti rtr rtt taa tab taf tah tai tar tat tba tbb tbf tbh tbi tbr tbt tfa tfb tff tfh tfi tfr tft th- tha thb thf thh thi thr tht tia tib tif tih tii tir tit tra trb trf trh tri trr trt tta ttb ttf tth tti ttr ttt