-er bbb bbd bbe bbg bbn bbo bbr bdb bdd bde bdg bdo bdr be- beb bed bee beg ben beo ber bgb bgd bge bgg bgn bgo bgr bnb bnd bne bng bnn bno bnr bob bod boe bog bon boo bor brb brd bre brg brn bro brr dbb dbd dbe dbg dbn dbo dbr ddb ddd dde ddg ddn ddo ddr de- deb ded dee deg den deo der dgd dge dgg dgn dgr dnb dnd dne dng dnn dno dnr dob dod doe dog don doo dor drb drd dre drg drn dro drr ebb ebd ebe ebg ebn ebo ebr ed- edb edd ede edg edn edo edr eeb eed eee eeg een eeo eer egb egd ege egg egn ego egr en- enb end ene eng enn eno enr eo- eob eod eoe eog eon eoo eor erb erd ere erg ern ero err g-d gbd gbe gbg gbn gbo gbr gdb gdd gde gdn gdo gdr ge- geb ged gee geg gen geo ger ggb ggd ggg ggn ggo ggr gnb gnd gne gnn gno gnr gob god goe gog gon goo gor grb grd gre grg grn gro grr nbb nbd nbe nbg nbn nbo nbr ndb ndd nde ndg ndn ndo ndr ne- neb ned nee neg nen neo ner ngb ngd nge ngg ngn ngo nnb nne nng nnn nno no- nob nod noe nog non noo nor nrb nrd nre nrg nrn nro nrr ob- obb obd obe obg obn obo obr odb odd ode odg odn odo odr oeb oed oee oeg oen oeo oer ogd oge ogg ogn ogo on- onb ond one ong onn ono onr oo- oob ood oog oon ooo oor or- orb ord ore org orn oro orr rbb rbd rbe rbg rbn rbo rbr rdb rdd rde rdg rdn rdo rdr re- reb red ree reg ren reo rer rgb rgd rge rgg rgn rgo rgr rnb rnd rng rnn rno rnr rob rod roe rog ron roo ror rrb rrd rrg rrn rrr