bbb bbd bbf bbi bbn bbo bbr bbs bdb bdd bdf bdi bdo bdr bds bfb bfd bff bfi bfn bfo bfr bfs bi- bib bid bif bii bin bio bir bis bnb bnd bnf bni bnn bno bnr bns bob bod bof boi bon boo bor bos brb brd brf bri brn bro brr brs bsb bsd bsf bsi bsn bso bsr bss dbb dbd dbf dbi dbn dbo dbr dbs ddb ddd ddf ddi ddn ddo ddr dds dfb dfd dff dfi dfn dfo dfr dfs di- dib did dif dii din dio dir dis dnb dnd dnf dni dnn dno dnr dns dob dod dof doi don doo dor dos drb drd dri drn dro drr drs dsb dsd dsf dsi dsn dso dsr dss fbb fbd fbf fbi fbn fbo fbr fbs fdb fdd fdf fdi fdn fdo fdr fds ffd fff ffi ffn ffo ffr ffs fib fid fif fii fin fir fis fnb fnd fnf fni fnn fnr fns fob fof foi fon foo for fos frb frd frf fri frn fro frr frs fsb fsd fsf fsi fsn fso fsr fss i-d i-f ibb ibd ibf ibi ibn ibo ibr ibs idb idd idf idi idn ido idr ids ifb ifd iff ifi ifn ifo ifr ifs iib iid iif iii iin iio iir iis in- inb ind inf ini inn ino inr ins io- iob iod iof ioi ion ioo ior ios ir- irb ird irf iri irn iro irr irs is- isb isd isf isi isn iso isr iss n-i nbb nbd nbf nbi nbn nbo nbr nbs ndb ndd ndf ndi ndn ndo ndr nds nfb nfd nff nfi nfn nfo nfr nfs nib nid nif nii nin nio nir nis nnb nnf nni nnn nno nns no- nob nod nof noi non noo nor nos nrb nrd nrf nri nrn nro nrr nrs nsb nsd nsf nsi nsn nso nsr nss o-i ob- obb obd obf obi obn obo obr obs odb odd odf odi odn odo odr ods of- ofb ofd off ofi ofn ofo ofr ofs oib oid oif oii oin oio oir ois on- onb ond onf oni onn ono onr ons oo- oob ood oof ooi oon ooo oor oos or- orb ord orf ori orn oro orr ors os- osb osd osf osi osn oso osr oss rbb rbd rbf rbi rbn rbo rbr rbs rdb rdd rdf rdi rdn rdo rdr rds rfb rfd rff rfi rfn rfo rfr rfs rib rid rif rii rin rio rir ris rnb rnd rni rnn rno rnr rns rob rod rof roi ron roo ror ros rrb rrd rrf rri rrn rrr rrs rsb rsd rsf rsi rsn rso rsr rss sbb sbd sbf sbi sbn sbo sbr sbs sdb sdd sdf sdi sdn sdo sdr sds sfb sfd sff sfi sfn sfo sfr sfs sib sid sif sii sin sio sir sis snb snd snf sni snn sno snr sns sob sod sof soi son soo sor sos sr- srb srd srf sri srn sro srr srs ss- ssb ssd ssf ssi ssn sso ssr sss