-er -ic b-u bbb bbc bbd bbe bbf bbi bbk bbn bbr bbs bbu bcb bcc bcd bce bcf bci bck bcn bcr bcs bcu bdb bdc bdd bde bdf bdi bdk bdr bds bdu be- beb bec bed bee bef bei bek ben ber bes beu bfb bfc bfd bfe bff bfi bfn bfr bfs bfu bi- bib bic bid bie bif bii bik bin bir bis biu bkb bkc bke bkf bkk bkn bkr bks bnb bnc bnd bne bnf bni bnk bnn bnr bns bnu brb brd bre brf bri brk brn brr brs bru bsb bsc bsd bse bsf bsi bsk bsn bsr bss bsu bub buc bud bue buf bui buk bun bur bus buu c-- cbb cbc cbd cbe cbf cbi cbk cbn cbr cbs cbu ccb ccc ccd cce ccf cci cck ccn ccr ccs ccu cdb cdc cdd cde cdf cdi cdk cdn cdr cds cdu ce- ceb cec ced cee cef cei cek cen cer ces ceu cfb cfc cfd cfe cff cfi cfk cfn cfr cfs cfu ci- cib cic cid cie cif cii cik cin cir cis ciu ckb ckc ckd cki cks cn- cnb cnc cnd cne cnf cni cnn cnr cns cnu crb crc crd cre crf cri crk crn crr crs cru csb csc csd cse csf csi csk csn csr css csu cub cuc cud cue cuf cui cuk cun cur cus cuu dbb dbc dbd dbe dbf dbi dbk dbn dbr dbs dbu dcb dcc dcd dce dcf dci dck dcn dcr dcs dcu ddb ddc ddd dde ddf ddi ddk ddn ddr dds ddu de- deb dec ded dee def dei dek den der des deu dfb dfc dfd dfe dff dfi dfk dfn dfr dfs dfu di- dib dic did die dif dii dik din dir dis diu dkb dkc dke dki dkk dkr dks dku dnb dnc dnd dne dnf dni dnk dnn dnr dns drb drc drd dre dri drk drn drr drs dru dsb dsc dsd dse dsf dsi dsk dsn dsr dss dsu dub duc dud due duf dui duk dun dur dus ebb ebc ebd ebe ebf ebi ebk ebn ebr ebs ebu ec- ecb ecc ecd ece ecf eci eck ecn ecr ecs ecu ed- edb edc edd ede edf edi edk edn edr eds edu eeb eec eed eee eef eek een eer ees ef- efb efc efd efe eff efi efr efs eib eic eid eie eif eii eik ein eir eis eiu ekb ekc ekd eke ekf eki ekr eks eku en- enb enc end ene enf eni enk enn enr ens enu erb erc erd ere erf eri erk ern err ers eru es- esb esc esd ese esf esi esk esn esr ess esu eu- eub euc eud eue euf eui eun eur eus fbb fbc fbd fbe fbf fbi fbk fbn fbr fbs fbu fcb fcc fcd fce fcf fci fck fcn fcr fcs fcu fdb fdc fdd fde fdf fdi fdk fdn fdr fds fdu feb fec fed fee fef fei fek fen fer fes feu ffc ffd ffe fff ffi ffk ffn ffr ffs ffu fib fic fid fie fif fii fik fin fir fis fiu fkb fkc fkf fki fkk fnb fnc fnd fne fnf fni fnk fnn fnr fns fnu frb frc frd fre frf fri frk frn frr frs fru fsb fsc fsd fse fsf fsi fsk fsn fsr fss fsu fub fud fue fuf fui fuk fun fur fus fuu i-d i-f ibb ibc ibd ibe ibf ibi ibk ibn ibr ibs ibu icb icc icd ice icf ici ick icn icr ics icu idb idc idd ide idf idi idk idn idr ids idu ie- iec ied iee ief iei iek ien ier ies ifb ifc ifd ife iff ifi ifn ifr ifs ifu iib iic iid iie iif iii iin iir iis iiu ikb ikc ike ikf iki ikk ikr iks iku in- inb inc ind ine inf ini ink inn inr ins inu ir- irb irc ird ire irf iri irk irn irr irs iru is- isb isc isd ise isf isi isk isn isr iss isu iu- iub iuc iud iue iui iur ius kbb kbc kbd kbe kbf kbi kbk kbn kbr kbs kbu kcb kcc kcd kce kci kck kcn kcr kcs kcu kdb kdc kde kdf kdk kdr kds kdu ke- keb kec ked kee kef kei kek ken ker kes kfc kfd kff kfi kfs kfu kib kic kid kie kif kii kik kin kir kis kiu kkb kkc kke kki kkk kkn kkr kks kku kn- knc knd kne knf kni knk knn knr knu krc krd krf kri krk krn krr krs kru ksb ksc ksd kse ksf ksi ksk ksn ksr kss ksu kub kuc kud kue kui kuk kun kur kus kuu n-i nbb nbc nbd nbe nbf nbi nbk nbn nbr nbs nbu ncb ncc ncd nce ncf nci nck ncn ncr ncs ncu ndb ndc ndd nde ndf ndi ndk ndn ndr nds ndu ne- neb nec ned nee nef nei nek nen ner nes neu nfb nfc nfd nfe nff nfi nfk nfn nfr nfs nfu nib nic nid nie nif nii nik nin nir nis niu nkc nke nkf nki nkk nkn nkr nks nku nnb nnc nne nnf nni nnk nnn nns nnu nrb nrc nrd nre nrf nri nrk nrn nrr nrs nru nsb nsc nsd nse nsf nsi nsk nsn nsr nss nsu nub nuc nud nue nui nuk nun nur nus nuu rbb rbc rbd rbe rbf rbi rbk rbn rbr rbs rbu rcb rcc rcd rce rcf rci rcn rcr rcs rcu rdb rdc rdd rde rdf rdi rdn rdr rds rdu re- reb rec red ree ref rei rek ren rer res reu rfb rfc rfd rfe rff rfi rfk rfn rfr rfs rfu rib ric rid rie rif rii rik rin rir ris rkb rkc rke rkf rkk rks rku rnb