-er bbb bbe bbf bbg bbi bbn bbo bbr be- beb bee bef beg bei ben beo ber bfb bfe bff bfg bfi bfn bfo bfr bgb bge bgf bgg bgi bgn bgo bgr bi- bib bie bif big bii bin bio bir bnb bne bnf bng bni bnn bno bnr bob boe bof bog boi bon boo bor brb bre brf brg bri brn bro brr ebb ebe ebf ebg ebi ebn ebo ebr eeb eee eef eeg een eeo eer ef- efb efe eff efg efi efo efr egb ege egf egg egi egn ego egr eib eie eif eig eii ein eio eir en- enb ene enf eng eni enn eno enr eo- eob eoe eof eog eoi eon eoo eor erb ere erf erg eri ern ero err fbb fbe fbf fbg fbi fbn fbo fbr feb fee fef feg fei fen feo fer ffe fff ffg ffi ffn ffo ffr fgb fge fgf fgg fgi fgn fgr fib fie fif fig fii fin fir fnb fne fnf fng fni fnn fnr fob foe fof fog foi fon foo for frb fre frf frg fri frn fro frr gbe gbf gbg gbi gbn gbo gbr ge- geb gee gef geg gei gen geo ger gfb gfe gff gfi gfo gfr ggb ggg ggi ggn ggo ggr gib gie gif gig gii gin gio gir gnb gne gnf gni gnn gno gnr gob goe gof gog goi gon goo gor grb gre grf grg gri grn gro grr i-f ibb ibe ibf ibg ibi ibn ibo ibr ie- iee ief ieg iei ien ier ifb ife iff ifg ifi ifn ifo ifr igb ige igf igg igi ign igo igr iib iie iif iii iin iio iir in- inb ine inf ing ini inn ino inr io- iob ioe iof iog ioi ion ioo ior ir- irb ire irf irg iri irn iro irr n-i nbb nbe nbf nbg nbi nbn nbo nbr ne- neb nee nef neg nei nen neo ner nfb nfe nff nfi nfn nfo nfr ngb nge ngf ngg ngi ngn ngo nib nie nif nig nii nin nio nir nnb nne nnf nng nni nnn nno no- nob noe nof nog noi non noo nor nrb nre nrf nrg nri nrn nro nrr o-i ob- obb obe obf obg obi obn obo obr oeb oee oef oeg oei oen oeo oer of- ofb ofe off ofg ofi ofn ofo ofr oge ogf ogg ogi ogn ogo oib oie oif oii oin oio oir on- onb one onf ong oni onn ono onr oo- oob oof oog ooi oon ooo oor or- orb ore orf org ori orn oro orr rbb rbe rbf rbg rbi rbn rbo rbr re- reb ree ref reg rei ren reo rer rfb rfe rff rfg rfi rfn rfo rfr rgb rge rgf rgg rgi rgn rgo rgr rib rie rif rig rii rin rio rir rnb rng rni rnn rno rnr rob roe rof rog roi ron roo ror rrb rrf rrg rri rrn rrr