-th bbb bbd bbe bbh bbi bbt bbx bdb bdd bde bdh bdi bdt bdx be- beb bed bee beh bei bet bex bhb bhd bhe bhh bhi bht bhx bi- bib bid bie bih bii bit bix btb btd bte bth bti btt btx bxb bxd bxi bxx dbb dbd dbe dbh dbi dbt dbx ddb ddd dde ddh ddi ddt ddx de- deb ded dee deh dei det dex dh- dhb dhd dhe dhh dhi dht di- dib did die dih dii dit dix dtb dtd dte dth dti dtt dtx dxd dxi dxt dxx ebb ebd ebe ebh ebi ebt ebx ed- edb edd ede edh edi edt edx eeb eed eee eet eex ehb ehd ehe ehh ehi eht eib eid eie eii eit eix etb etd ete eth eti ett etx ex- exd exe exh exi ext exx h-i hbb hbd hbe hbh hbi hbt hbx hdb hdd hde hdh hdi hdt hdx he- heb hed hee heh hei het hex hhb hhd hhe hhh hhi hht hib hid hie hih hii hit hix htb htd hte hth hti htt htx hxd i-d ibb ibd ibe ibh ibi ibt ibx idb idd ide idh idi idt idx ie- ied iee iei iet iex ihb ihd ihe ihh ihi iht iib iid iie iih iii iit iix itb itd ite ith iti itt itx ixe ixi t-x tbb tbd tbe tbh tbi tbt tdb tdd tde tdh tdi tdt tdx te- teb ted tee teh tei tet tex th- thb thd the thh thi tht thx tib tid tie tih tii tit tix ttb ttd tte tth tti ttt ttx txe txi txt xbe xbx xdb xde xdh xdi xdt xed xee xet xex xhd xht xie xii xit xix xti xtx xxi xxx