bbb bbd bbi bbk bbn bbr bbs bbt bdb bdd bdi bdk bdr bds bdt bi- bib bid bii bik bin bir bis bit bkb bkk bkn bkr bks bkt bnb bnd bni bnk bnn bnr bns bnt brb brd bri brk brn brr brs brt bsb bsd bsi bsk bsn bsr bss bst btb btd bti btk btn btr bts btt dbb dbd dbi dbk dbn dbr dbs dbt ddb ddd ddi ddk ddn ddr dds ddt di- dib did dii dik din dir dis dit dkb dki dkk dkr dks dkt dnb dnd dni dnk dnn dnr dns dnt drb drd dri drk drn drr drs drt dsb dsd dsi dsk dsn dsr dss dst dtb dtd dti dtk dtn dtr dts dtt i-d ibb ibd ibi ibk ibn ibr ibs ibt idb idd idi idk idn idr ids idt iib iid iii iin iir iis iit ikb iki ikk ikr iks ikt in- inb ind ini ink inn inr ins int ir- irb ird iri irk irn irr irs irt is- isb isd isi isk isn isr iss ist itb itd iti itk itn its itt k-t kbb kbd kbi kbk kbn kbr kbs kdb kdk kdr kds kdt kib kid kii kik kin kir kis kit kkb kki kkk kkn kkr kks kkt kn- knd kni knk knn knr knt krd kri krk krn krr krs krt ksb ksd ksi ksk ksn ksr kss kst ktb ktk ktn ktr kts ktt n-i nbb nbd nbi nbk nbn nbr nbs nbt ndb ndd ndi ndk ndn ndr nds ndt nib nid nii nik nin nir nis nit nki nkk nkn nkr nks nkt nnb nni nnk nnn nns nnt nrb nrd nri nrk nrn nrr nrs nrt nsb nsd nsi nsk nsn nsr nss nst ntb ntd nti ntk ntn ntr nts ntt rbb rbd rbi rbk rbn rbr rbs rbt rdb rdd rdi rdn rdr rds rdt rib rid rii rik rin rir ris rit rkb rkk rks rkt rnb rnd rni rnn rnr rns rnt rrb rrd rri rrk rrn rrr rrs rrt rsb rsd rsi rsk rsn rsr rss rst rtb rtd rti rtk rtn rtr rts rtt sbb sbd sbi sbk sbn sbr sbs sbt sdb sdd sdi sdk sdn sdr sds sdt sib sid sii sik sin sir sis sit sk- skb skd ski skk skr sks skt snb snd sni snk snn snr sns snt sr- srb srd sri srk srn srr srs srt ss- ssb ssd ssi ssk ssn ssr sss sst stb std sti stk stn str sts stt tbb tbd tbi tbk tbn tbr tbs tbt tdb tdd tdi tdk tdn tdr tds tdt tib tid tii tik tin tir tis tit tkb tkk tkr tks tkt tnb tnd tni tnk tnn tnr tns tnt trb trd tri trk trn trr trs trt tsb tsd tsi tsk tsn tsr tss tst ttb ttd tti ttk ttn ttr tts ttt