-er -th bbb bbd bbe bbh bbi bbr bbt bbx bdb bdd bde bdh bdi bdr bdt bdx be- beb bed bee beh bei ber bet bex bhb bhd bhe bhh bhi bhr bht bhx bi- bib bid bie bih bii bir bit bix brb brd bre brh bri brr brt brx btb btd bte bth bti btr btt btx bxb bxd bxi bxx dbb dbd dbe dbh dbi dbr dbt dbx ddb ddd dde ddh ddi ddr ddt ddx de- deb ded dee deh dei der det dex dh- dhb dhd dhe dhh dhi dhr dht di- dib did die dih dii dir dit dix drb drd dre dri drr drt drx dtb dtd dte dth dti dtr dtt dtx dxd dxi dxr dxt dxx ebb ebd ebe ebh ebi ebr ebt ebx ed- edb edd ede edh edi edr edt edx eeb eed eee eer eet eex ehb ehd ehe ehh ehi ehr eht eib eid eie eii eir eit eix erb erd ere erh eri err ert etb etd ete eth eti etr ett etx ex- exd exe exh exi exr ext exx h-i hbb hbd hbe hbh hbi hbr hbt hbx hdb hdd hde hdh hdi hdr hdt hdx he- heb hed hee heh hei her het hex hhb hhd hhe hhh hhi hhr hht hib hid hie hih hii hir hit hix hr- hrb hrd hre hrh hri hrr hrt htb htd hte hth hti htr htt htx hxd i-d ibb ibd ibe ibh ibi ibr ibt ibx idb idd ide idh idi idr idt idx ie- ied iee iei ier iet iex ihb ihd ihe ihh ihi ihr iht iib iid iie iih iii iir iit iix ir- irb ird ire iri irr irt irx itb itd ite ith iti itt itx ixe ixi rbb rbd rbe rbh rbi rbr rbt rbx rdb rdd rde rdh rdi rdr rdt rdx re- reb red ree reh rei rer ret rex rh- rhb rhd rhe rhh rhi rhr rht rib rid rie rih rii rir rit rix rrb rrd rrh rri rrr rrt rtb rtd rte rti rtr rtt rtx rxr t-x tbb tbd tbe tbh tbi tbr tbt tdb tdd tde tdh tdi tdr tdt tdx te- teb ted tee teh tei ter tet tex th- thb thd the thh thi thr tht thx tib tid tie tih tii tir tit tix trb trd tre trh tri trr trt trx ttb ttd tte tth tti ttr ttt ttx txe txi txt xbe xbr xbx xdb xde xdh xdi xdr xdt xed xee xer xet xex xhd xht xie xii xit xix xrd xrt xrx xti xtr xtx xxi xxx