-th bbb bbe bbf bbh bbi bbo bbs bbt bbx be- beb bee bef beh bei beo bes bet bex bfb bfe bff bfh bfi bfo bfs bft bfx bhb bhe bhf bhh bhi bho bhs bht bhx bi- bib bie bif bih bii bio bis bit bix bob boe bof boh boi boo bos bot box bsb bse bsf bsh bsi bso bss bst bsx btb bte btf bth bti bto bts btt btx bxb bxi bxo bxx ebb ebe ebf ebh ebi ebo ebs ebt ebx eeb eee eef eeo ees eet eex ef- efb efe eff efh efi efo efs eft efx ehb ehe ehf ehh ehi eho ehs eht eib eie eif eii eio eis eit eix eo- eob eoe eof eoh eoi eoo eos eot es- esb ese esf esh esi eso ess est esx etb ete etf eth eti eto ets ett etx ex- exe exh exi exo exs ext exx fbb fbe fbf fbh fbi fbo fbs fbt fbx feb fee fef feh fei feo fes fet fex ffe fff ffh ffi ffo ffs fft ffx fhb fhe fhf fhh fhi fho fhs fib fie fif fih fii fis fit fix fob foe fof foh foi foo fos fot fox fsb fse fsf fsh fsi fso fss fst fsx ftb fte ftf fth fti fto fts ftt ftx fxe fxi fxs fxt fxx h-i hbb hbe hbf hbh hbi hbo hbs hbt hbx he- heb hee hef heh hei heo hes het hex hfb hfe hff hfh hfi hfo hfs hft hhb hhe hhf hhh hhi hho hhs hht hib hie hif hih hii hio his hit hix hob hoe hof hoh hoi hoo hos hot hox hsb hse hsf hsh hsi hss hst hsx htb hte htf hth hti hto hts htt htx i-f ibb ibe ibf ibh ibi ibo ibs ibt ibx ie- iee ief iei ies iet iex ifb ife iff ifi ifo ifs ift ifx ihb ihe ihf ihh ihi iho ihs iht iib iie iif iih iii iio iis iit iix io- iob ioe iof ioh ioi ioo ios iot is- isb ise isf ish isi iso iss ist itb ite itf ith iti ito its itt itx ixe ixi o-i ob- obb obe obf obh obi obo obs obt obx oeb oee oef oeh oei oeo oes oet oex of- ofb ofe off ofi ofo ofs oft ofx ohe ohf ohh ohi oho ohs oht oib oie oif oii oio ois oit oo- oob oof ooh ooi ooo oos oot oox os- osb ose osf osh osi oso oss ost osx ot- otb ote otf oth oti oto ots ott ox- oxb oxf oxi oxo oxt oxx sbb sbe sbf sbh sbi sbo sbs sbt sbx se- seb see sef seh sei seo ses set sex sfb sfe sff sfh sfi sfo sfs sft sfx sh- shb she shf shh shi sho shs sht sib sie sif sih sii sio sis sit six sob soe sof soh soi soo sos sot sox ss- ssb sse ssf ssh ssi sso sss sst ssx stb ste stf sth sti sto sts stt stx sxi sxs sxt t-x tbb tbe tbf tbh tbi tbo tbs tbt te- teb tee tef teh tei teo tes tet tex tfb tfe tff tfh tfi tfo tfs tft tfx th- thb the thf thh thi tho ths tht thx tib tie tif tih tii tio tis tit tix to- tob toe tof toh toi too tos tot tox tsb tse tsf tsh tsi tso tss tst tsx ttb tte ttf tth tti tto tts ttt ttx txe txf txi txs txt xbe xbx xee xes xet xex xfe xfh xfs xft xfx xht xie xii xio xis xit xix xof xoi xoo xos xot xox xsb xsi xss xst xtf xti xts xtx xxi xxo xxx