bbb bbd bbh bbr bbx bdb bdd bdh bdr bdx bdz bhb bhd bhh bhr bhx brb brd brh brr brx brz bxb bxd bxx bzd bzh bzr bzz dbb dbd dbh dbr dbx dbz ddb ddd ddh ddr ddx ddz dh- dhb dhd dhh dhr drb drd drr drx drz dxd dxr dxx dzb dzd dzr hbb hbd hbh hbr hbx hbz hdb hdd hdh hdr hdx hdz hhb hhd hhh hhr hhz hr- hrb hrd hrh hrr hrz hxd hzd rbb rbd rbh rbr rbx rdb rdd rdh rdr rdx rh- rhb rhd rhh rhr rrb rrd rrh rrr rxr rzb xbr xbx xdb xdh xdr xhd xrd xrx xxx zbb zbr zhr zrh zxx zzr zzx zzz