-er bbb bbe bbf bbg bbi bbr bbt be- beb bee bef beg bei ber bet bfb bfe bff bfg bfi bfr bft bgb bge bgf bgg bgi bgr bgt bi- bib bie bif big bii bir bit brb bre brf brg bri brr brt btb bte btf btg bti btr btt ebb ebe ebf ebg ebi ebr ebt eeb eee eef eeg eer eet ef- efb efe eff efg efi efr eft egb ege egf egg egi egr egt eib eie eif eig eii eir eit erb ere erf erg eri err ert etb ete etf etg eti etr ett fbb fbe fbf fbg fbi fbr fbt feb fee fef feg fei fer fet ffe fff ffg ffi ffr fft fgb fge fgf fgg fgi fgr fgt fib fie fif fig fii fir fit frb fre frf frg fri frr frt ftb fte ftf ftg fti ftr ftt gbe gbf gbg gbi gbr gbt ge- geb gee gef geg gei ger get gfb gfe gff gfi gfr gft ggb ggg ggi ggr ggt gib gie gif gig gii gir git grb gre grf grg gri grr grt gtb gte gtf gtg gti gtr gtt i-f ibb ibe ibf ibg ibi ibr ibt ie- iee ief ieg iei ier iet ifb ife iff ifg ifi ifr ift igb ige igf igg igi igr igt iib iie iif iii iir iit ir- irb ire irf irg iri irr irt itb ite itf itg iti itt rbb rbe rbf rbg rbi rbr rbt re- reb ree ref reg rei rer ret rfb rfe rff rfg rfi rfr rft rgb rge rgf rgg rgi rgr rgt rib rie rif rig rii rir rit rrb rrf rrg rri rrr rrt rtb rte rtf rtg rti rtr rtt tbb tbe tbf tbg tbi tbr tbt te- teb tee tef teg tei ter tet tfb tfe tff tfg tfi tfr tft tgb tge tgf tgg tgi tgr tgt tib tie tif tig tii tir tit trb tre trf trg tri trr trt ttb tte ttf ttg tti ttr ttt