-er bbb bbd bbe bbf bbi bbk bbn bbo bbr bbs bbt bdb bdd bde bdf bdi bdk bdo bdr bds bdt be- beb bed bee bef bei bek ben beo ber bes bet bfb bfd bfe bff bfi bfn bfo bfr bfs bft bi- bib bid bie bif bii bik bin bio bir bis bit bkb bke bkf bkk bkn bko bkr bks bkt bnb bnd bne bnf bni bnk bnn bno bnr bns bnt bob bod boe bof boi bok bon boo bor bos bot brb brd bre brf bri brk brn bro brr brs brt bsb bsd bse bsf bsi bsk bsn bso bsr bss bst btb btd bte btf bti btk btn bto btr bts btt dbb dbd dbe dbf dbi dbk dbn dbo dbr dbs dbt ddb ddd dde ddf ddi ddk ddn ddo ddr dds ddt de- deb ded dee def dei dek den deo der des det dfb dfd dfe dff dfi dfk dfn dfo dfr dfs dft di- dib did die dif dii dik din dio dir dis dit dkb dke dki dkk dko dkr dks dkt dnb dnd dne dnf dni dnk dnn dno dnr dns dnt dob dod doe dof doi dok don doo dor dos dot drb drd dre dri drk drn dro drr drs drt dsb dsd dse dsf dsi dsk dsn dso dsr dss dst dtb dtd dte dtf dti dtk dtn dto dtr dts dtt ebb ebd ebe ebf ebi ebk ebn ebo ebr ebs ebt ed- edb edd ede edf edi edk edn edo edr eds edt eeb eed eee eef eek een eeo eer ees eet ef- efb efd efe eff efi efo efr efs eft eib eid eie eif eii eik ein eio eir eis eit ekb ekd eke ekf eki eko ekr eks ekt en- enb end ene enf eni enk enn eno enr ens ent eo- eob eod eoe eof eoi eok eon eoo eor eos eot erb erd ere erf eri erk ern ero err ers ert es- esb esd ese esf esi esk esn eso esr ess est etb etd ete etf eti etk etn eto etr ets ett fbb fbd fbe fbf fbi fbk fbn fbo fbr fbs fbt fdb fdd fde fdf fdi fdk fdn fdo fdr fds fdt feb fed fee fef fei fek fen feo fer fes fet ffd ffe fff ffi ffk ffn ffo ffr ffs fft fib fid fie fif fii fik fin fir fis fit fkb fkf fki fkk fkt fnb fnd fne fnf fni fnk fnn fnr fns fnt fob foe fof foi fok fon foo for fos fot frb frd fre frf fri frk frn fro frr frs frt fsb fsd fse fsf fsi fsk fsn fso fsr fss fst ftb ftd fte ftf fti ftk ftn fto ftr fts ftt i-d i-f ibb ibd ibe ibf ibi ibk ibn ibo ibr ibs ibt idb idd ide idf idi idk idn ido idr ids idt ie- ied iee ief iei iek ien ier ies iet ifb ifd ife iff ifi ifn ifo ifr ifs ift iib iid iie iif iii iin iio iir iis iit ikb ike ikf iki ikk iko ikr iks ikt in- inb ind ine inf ini ink inn ino inr ins int io- iob iod ioe iof ioi ion ioo ior ios iot ir- irb ird ire irf iri irk irn iro irr irs irt is- isb isd ise isf isi isk isn iso isr iss ist itb itd ite itf iti itk itn ito its itt k-t kbb kbd kbe kbf kbi kbk kbn kbo kbr kbs kdb kde kdf kdk kdo kdr kds kdt ke- keb ked kee kef kei kek ken keo ker kes ket kfd kff kfi kfo kfs kib kid kie kif kii kik kin kio kir kis kit kkb kke kki kkk kkn kkr kks kkt kn- knd kne knf kni knk knn kno knr knt kob kod koe kof koi kok kon koo kor kos kot krd krf kri krk krn kro krr krs krt ksb ksd kse ksf ksi ksk ksn kso ksr kss kst ktb kte ktf ktk ktn kto ktr kts ktt n-i nbb nbd nbe nbf nbi nbk nbn nbo nbr nbs nbt ndb ndd nde ndf ndi ndk ndn ndo ndr nds ndt ne- neb ned nee nef nei nek nen neo ner nes net nfb nfd nfe nff nfi nfk nfn nfo nfr nfs nft nib nid nie nif nii nik nin nio nir nis nit nke nkf nki nkk nkn nko nkr nks nkt nnb nne nnf nni nnk nnn nno nns nnt no- nob nod noe nof noi nok non noo nor nos not nrb nrd nre nrf nri nrk nrn nro nrr nrs nrt nsb nsd nse nsf nsi nsk nsn nso nsr nss nst ntb ntd nte ntf nti ntk ntn nto ntr nts ntt o-i ob- obb obd obe obf obi obk obn obo obr obs obt odb odd ode odf odi odn odo odr ods odt oeb oed oee oef oei oen oeo oer oes oet of- ofb ofd ofe off ofi ofn ofo ofr ofs oft oib oid oie oif oii oik oin oio oir ois oit okb okd oke oki okk oko okr oks on- onb ond one onf oni onk onn ono onr ons ont oo- oob ood oof ooi ook oon ooo oor oos oot or- orb ord ore orf ori ork orn oro orr ors ort os- osb osd ose osf osi osk osn oso osr oss ost ot- otb otd ote otf oti otk otn oto otr ots ott rbb rbd rbe rbf rbi rbk rbn rbo rbr rbs rbt rdb rdd rde rdf rdi rdn rdo rdr rds rdt re- reb red ree ref rei rek ren reo rer res ret rfb rfd rfe rff rfi rfk rfn rfo rfr rfs rft rib rid rie rif rii rik rin rio rir ris rit rkb rke rkf rkk rko rks rkt