-th a-a a-b a-i a-t aaa aab aaf aah aai aao aap aat ab- aba abb abf abh abi abo abp abt af- afa afb aff afh afi afo afp aft aha ahb ahf ahh ahi aho ahp aht ai- aia aib aif aih aii aio aip ait aoa aob aof aoh aoi aoo aop aot ap- apa apb apf aph api apo app apt at- ata atb atf ath ati ato atp att b-p baa bab baf bah bai bao bap bat bba bbb bbf bbh bbi bbo bbp bbt bfa bfb bff bfh bfi bfo bfp bft bha bhb bhf bhh bhi bho bhp bht bi- bia bib bif bih bii bio bip bit boa bob bof boh boi boo bop bot bpa bpb bpf bph bpi bpo bpp bpt bta btb btf bth bti bto btp btt faa fab faf fah fai fao fap fat fba fbb fbf fbh fbi fbo fbp fbt ffa fff ffh ffi ffo ffp fft fha fhb fhf fhh fhi fho fhp fia fib fif fih fii fip fit foa fob fof foh foi foo fop fot fpa fpb fph fpi fpo fpp fpt fta ftb ftf fth fti fto ftp ftt h-i haa hab haf hah hai hao hap hat hba hbb hbf hbh hbi hbo hbp hbt hfa hfb hff hfh hfi hfo hfp hft hha hhb hhf hhh hhi hho hhp hht hia hib hif hih hii hio hip hit hoa hob hof hoh hoi hoo hop hot hpa hpb hpf hph hpi hpo hpp hpt hta htb htf hth hti hto htp htt i-f ia- iaa iab iaf iah iai iao iap iat iba ibb ibf ibh ibi ibo ibp ibt ifa ifb iff ifi ifo ifp ift iha ihb ihf ihh ihi iho ihp iht iia iib iif iih iii iio iip iit io- ioa iob iof ioh ioi ioo iop iot ipa ipb ipf ipi ipo ipp ipt ita itb itf ith iti ito itp itt o-i oaa oab oaf oah oai oao oap oat ob- oba obb obf obh obi obo obp obt of- ofa ofb off ofi ofo ofp oft oha ohf ohh ohi oho ohp oht oia oib oif oii oio oip oit oo- ooa oob oof ooh ooi ooo oop oot op- opa opb opf oph opi opo opp opt ot- ota otb otf oth oti oto otp ott p-p paa pab paf pah pai pao pap pat pba pbb pbf pbi pbo pbp pbt pfa pfb pff pfi pfo pfp pft pha phb phf phi pho php pht pia pib pif pih pii pio pip pit poa pob pof poh poi poo pop pot ppa ppb ppf pph ppi ppo ppp ppt pt- pta ptb ptf pth pti pto ptp ptt taa tab taf tah tai tao tap tat tba tbb tbf tbh tbi tbo tbp tbt tfa tfb tff tfh tfi tfo tfp tft th- tha thb thf thh thi tho thp tht tia tib tif tih tii tio tip tit to- toa tob tof toh toi too top tot tpa tpb tpf tph tpi tpo tpp tpt tta ttb ttf tth tti tto ttp ttt