bbb bbg bbi bbn bbr bbs bbt bgb bgg bgi bgn bgr bgs bgt bi- bib big bii bin bir bis bit bnb bng bni bnn bnr bns bnt brb brg bri brn brr brs brt bsb bsg bsi bsn bsr bss bst btb btg bti btn btr bts btt gbg gbi gbn gbr gbs gbt ggb ggg ggi ggn ggr ggs ggt gib gig gii gin gir gis git gnb gni gnn gnr gns gnt grb grg gri grn grr grs grt gsb gsg gsi gsn gsr gss gst gtb gtg gti gtn gtr gts gtt ibb ibg ibi ibn ibr ibs ibt igb igg igi ign igr igs igt iib iii iin iir iis iit in- inb ing ini inn inr ins int ir- irb irg iri irn irr irs irt is- isb isg isi isn isr iss ist itb itg iti itn its itt n-i nbb nbg nbi nbn nbr nbs nbt ngb ngg ngi ngn ngs ngt nib nig nii nin nir nis nit nnb nng nni nnn nns nnt nrb nrg nri nrn nrr nrs nrt nsb nsg nsi nsn nsr nss nst ntb ntg nti ntn ntr nts ntt rbb rbg rbi rbn rbr rbs rbt rgb rgg rgi rgn rgr rgs rgt rib rig rii rin rir ris rit rnb rng rni rnn rnr rns rnt rrb rrg rri rrn rrr rrs rrt rsb rsg rsi rsn rsr rss rst rtb rtg rti rtn rtr rts rtt sbb sbg sbi sbn sbr sbs sbt sgb sgg sgi sgn sgr sgs sgt sib sig sii sin sir sis sit snb sng sni snn snr sns snt sr- srb srg sri srn srr srs srt ss- ssb ssg ssi ssn ssr sss sst stb stg sti stn str sts stt tbb tbg tbi tbn tbr tbs tbt tgb tgg tgi tgn tgr tgs tgt tib tig tii tin tir tis tit tnb tng tni tnn tnr tns tnt trb trg tri trn trr trs trt tsb tsg tsi tsn tsr tss tst ttb ttg tti ttn ttr tts ttt