-er bbb bbd bbe bbh bbo bbr bdb bdd bde bdh bdo bdr bdz be- beb bed bee beh beo ber bez bhb bhd bhe bhh bho bhr bob bod boe boh boo bor boz brb brd bre brh bro brr brz bzd bze bzh bzo bzr bzz dbb dbd dbe dbh dbo dbr dbz ddb ddd dde ddh ddo ddr ddz de- deb ded dee deh deo der dez dh- dhb dhd dhe dhh dho dhr dob dod doe doh doo dor doz drb drd dre dro drr drz dzb dzd dze dzo dzr ebb ebd ebe ebh ebo ebr ed- edb edd ede edh edo edr eeb eed eee eeo eer ehb ehd ehe ehh eho ehr eo- eob eod eoe eoh eoo eor erb erd ere erh ero err erz eze ezh ezo ezr ezz hbb hbd hbe hbh hbo hbr hbz hdb hdd hde hdh hdo hdr hdz he- heb hed hee heh heo her hez hhb hhd hhe hhh hho hhr hhz hob hod hoe hoh hoo hor hr- hrb hrd hre hrh hro hrr hrz hzd hze hzo ob- obb obd obe obh obo obr odb odd ode odh odo odr oeb oed oee oeh oeo oer ohd ohe ohh oho ohr oo- oob ood ooh ooo oor or- orb ord ore orh oro orr orz oze ozo ozz rbb rbd rbe rbh rbo rbr rdb rdd rde rdh rdo rdr re- reb red ree reh reo rer rez rh- rhb rhd rhe rhh rho rhr rob rod roe roh roo ror roz rrb rrd rrh rrr rzb rze rzo zbb zbr zeb zed zee zeh zeo zer zez zhe zho zhr zo- zob zod zoe zoo zor zrh zro zzr zzz