-er bbb bbe bbf bbg bbi bbm bbo bbr be- beb bee bef beg bei bem beo ber bfb bfe bff bfg bfi bfm bfo bfr bgb bge bgf bgg bgi bgm bgo bgr bi- bib bie bif big bii bim bio bir bmb bme bmf bmg bmi bmm bmo bmr bob boe bof bog boi bom boo bor brb bre brf brg bri brm bro brr ebb ebe ebf ebg ebi ebm ebo ebr eeb eee eef eeg eem eeo eer ef- efb efe eff efg efi efm efo efr egb ege egf egg egi egm ego egr eib eie eif eig eii eim eio eir em- emb eme emf emg emi emm emo emr eo- eob eoe eof eog eoi eom eoo eor erb ere erf erg eri erm ero err fbb fbe fbf fbg fbi fbm fbo fbr feb fee fef feg fei fem feo fer ffe fff ffg ffi ffm ffo ffr fgb fge fgf fgg fgi fgm fgr fib fie fif fig fii fim fir fmb fme fmf fmg fmi fmm fmo fmr fob foe fof fog foi fom foo for frb fre frf frg fri frm fro frr gbe gbf gbg gbi gbm gbo gbr ge- geb gee gef geg gei gem geo ger gfb gfe gff gfi gfm gfo gfr ggb ggg ggi ggm ggo ggr gib gie gif gig gii gim gio gir gmb gme gmf gmg gmi gmm gmo gmr gob goe gof gog goi gom goo gor grb gre grf grg gri grm gro grr i-f ibb ibe ibf ibg ibi ibm ibo ibr ie- iee ief ieg iei iem ier ifb ife iff ifg ifi ifm ifo ifr igb ige igf igg igi igm igo igr iib iie iif iii iim iio iir im- imb ime imf img imi imm imo io- iob ioe iof iog ioi iom ioo ior ir- irb ire irf irg iri irm iro irr m-f m-o m-r mbb mbe mbf mbg mbi mbm mbo mbr meb mee mef meg mei mem meo mer mfb mfe mff mfg mfi mfm mfo mfr mgb mge mgf mgi mgm mgo mgr mi- mib mie mif mig mii mim mio mir mmb mme mmf mmg mmi mmm mmo mmr mob moe mof mog moi mom moo mor mrb mre mrf mrg mri mrm mro mrr o-i ob- obb obe obf obg obi obm obo obr oeb oee oef oeg oei oem oeo oer of- ofb ofe off ofg ofi ofm ofo ofr oge ogf ogg ogi ogo oib oie oif oii oim oio oir om- omb ome omf omg omi omm omo omr oo- oob oof oog ooi oom ooo oor or- orb ore orf org ori orm oro orr rbb rbe rbf rbg rbi rbm rbo rbr re- reb ree ref reg rei rem reo rer rfb rfe rff rfg rfi rfm rfo rfr rgb rge rgf rgg rgi rgo rgr rib rie rif rig rii rim rio rir rmb rme rmf rmg rmi rmm rmo rmr rob roe rof rog roi rom roo ror rrb rrf rrg rri rrm rrr