-er bbb bbd bbe bbf bbi bbn bbo bbr bbs bdb bdd bde bdf bdi bdo bdr bds be- beb bed bee bef bei ben beo ber bes bfb bfd bfe bff bfi bfn bfo bfr bfs bi- bib bid bie bif bii bin bio bir bis bnb bnd bne bnf bni bnn bno bnr bns bob bod boe bof boi bon boo bor bos brb brd bre brf bri brn bro brr brs bsb bsd bse bsf bsi bsn bso bsr bss dbb dbd dbe dbf dbi dbn dbo dbr dbs ddb ddd dde ddf ddi ddn ddo ddr dds de- deb ded dee def dei den deo der des dfb dfd dfe dff dfi dfn dfo dfr dfs di- dib did die dif dii din dio dir dis dnb dnd dne dnf dni dnn dno dnr dns dob dod doe dof doi don doo dor dos drb drd dre dri drn dro drr drs dsb dsd dse dsf dsi dsn dso dsr dss ebb ebd ebe ebf ebi ebn ebo ebr ebs ed- edb edd ede edf edi edn edo edr eds eeb eed eee eef een eeo eer ees ef- efb efd efe eff efi efo efr efs eib eid eie eif eii ein eio eir eis en- enb end ene enf eni enn eno enr ens eo- eob eod eoe eof eoi eon eoo eor eos erb erd ere erf eri ern ero err ers es- esb esd ese esf esi esn eso esr ess fbb fbd fbe fbf fbi fbn fbo fbr fbs fdb fdd fde fdf fdi fdn fdo fdr fds feb fed fee fef fei fen feo fer fes ffd ffe fff ffi ffn ffo ffr ffs fib fid fie fif fii fin fir fis fnb fnd fne fnf fni fnn fnr fns fob foe fof foi fon foo for fos frb frd fre frf fri frn fro frr frs fsb fsd fse fsf fsi fsn fso fsr fss i-d i-f ibb ibd ibe ibf ibi ibn ibo ibr ibs idb idd ide idf idi idn ido idr ids ie- ied iee ief iei ien ier ies ifb ifd ife iff ifi ifn ifo ifr ifs iib iid iie iif iii iin iio iir iis in- inb ind ine inf ini inn ino inr ins io- iob iod ioe iof ioi ion ioo ior ios ir- irb ird ire irf iri irn iro irr irs is- isb isd ise isf isi isn iso isr iss n-i nbb nbd nbe nbf nbi nbn nbo nbr nbs ndb ndd nde ndf ndi ndn ndo ndr nds ne- neb ned nee nef nei nen neo ner nes nfb nfd nfe nff nfi nfn nfo nfr nfs nib nid nie nif nii nin nio nir nis nnb nne nnf nni nnn nno nns no- nob nod noe nof noi non noo nor nos nrb nrd nre nrf nri nrn nro nrr nrs nsb nsd nse nsf nsi nsn nso nsr nss o-i ob- obb obd obe obf obi obn obo obr obs odb odd ode odf odi odn odo odr ods oeb oed oee oef oei oen oeo oer oes of- ofb ofd ofe off ofi ofn ofo ofr ofs oib oid oie oif oii oin oio oir ois on- onb ond one onf oni onn ono onr ons oo- oob ood oof ooi oon ooo oor oos or- orb ord ore orf ori orn oro orr ors os- osb osd ose osf osi osn oso osr oss rbb rbd rbe rbf rbi rbn rbo rbr rbs rdb rdd rde rdf rdi rdn rdo rdr rds re- reb red ree ref rei ren reo rer res rfb rfd rfe rff rfi rfn rfo rfr rfs rib rid rie rif rii rin rio rir ris rnb rnd rni rnn rno rnr rns rob rod roe rof roi ron roo ror ros rrb rrd rrf rri rrn rrr rrs rsb rsd rse rsf rsi rsn rso rsr rss sbb sbd sbe sbf sbi sbn sbo sbr sbs sdb sdd sde sdf sdi sdn sdo sdr sds se- seb sed see sef sei sen seo ser ses sfb sfd sfe sff sfi sfn sfo sfr sfs sib sid sie sif sii sin sio sir sis snb snd sne snf sni snn sno snr sns sob sod soe sof soi son soo sor sos sr- srb srd sre srf sri srn sro srr srs ss- ssb ssd sse ssf ssi ssn sso ssr sss