-th bbb bbg bbh bbi bbr bbt bgb bgg bgh bgi bgr bgt bhb bhg bhh bhi bhr bht bi- bib big bih bii bir bit brb brg brh bri brr brt btb btg bth bti btr btt gbg gbh gbi gbr gbt ggb ggg ggh ggi ggr ggt ghb ghg ghh ghi ghr ght gib gig gih gii gir git grb grg grh gri grr grt gtb gtg gth gti gtr gtt h-i hbb hbg hbh hbi hbr hbt hgb hgg hgh hgi hgr hgt hhb hhg hhh hhi hhr hht hib hig hih hii hir hit hr- hrb hrg hrh hri hrr hrt htb htg hth hti htr htt ibb ibg ibh ibi ibr ibt igb igg igh igi igr igt ihb ihg ihh ihi ihr iht iib iih iii iir iit ir- irb irg iri irr irt itb itg ith iti itt rbb rbg rbh rbi rbr rbt rgb rgg rgh rgi rgr rgt rh- rhb rhg rhh rhi rhr rht rib rig rih rii rir rit rrb rrg rrh rri rrr rrt rtb rtg rti rtr rtt tbb tbg tbh tbi tbr tbt tgb tgg tgh tgi tgr tgt th- thb thg thh thi thr tht tib tig tih tii tir tit trb trg trh tri trr trt ttb ttg tth tti ttr ttt