-er -ic bbb bbc bbe bbf bbi bbm bbn bbo bbr bbs bcb bcc bce bcf bci bcm bcn bco bcr bcs be- beb bec bee bef bei bem ben beo ber bes bfb bfc bfe bff bfi bfm bfn bfo bfr bfs bi- bib bic bie bif bii bim bin bio bir bis bmb bmc bme bmf bmi bmm bmn bmo bmr bms bnb bnc bne bnf bni bnn bno bnr bns bob boc boe bof boi bom bon boo bor bos brb bre brf bri brm brn bro brr brs bsb bsc bse bsf bsi bsm bsn bso bsr bss c-- cbb cbc cbe cbf cbi cbm cbn cbo cbr cbs ccb ccc cce ccf cci ccm ccn cco ccr ccs ce- ceb cec cee cef cei cem cen ceo cer ces cfb cfc cfe cff cfi cfm cfn cfo cfr cfs ci- cib cic cie cif cii cim cin cio cir cis cmb cmc cme cmf cmi cmm cmn cmo cmr cms cn- cnb cnc cne cnf cni cnm cnn cno cnr cns co- cob coc coe cof coi com con coo cor cos crb crc cre crf cri crm crn cro crr crs csb csc cse csf csi csm csn cso csr css ebb ebc ebe ebf ebi ebm ebn ebo ebr ebs ec- ecb ecc ece ecf eci ecm ecn eco ecr ecs eeb eec eee eef eem een eeo eer ees ef- efb efc efe eff efi efm efo efr efs eib eic eie eif eii eim ein eio eir eis em- emb emc eme emf emi emm emn emo emr ems en- enb enc ene enf eni enm enn eno enr ens eo- eob eoc eoe eof eoi eom eon eoo eor eos erb erc ere erf eri erm ern ero err ers es- esb esc ese esf esi esm esn eso esr ess fbb fbc fbe fbf fbi fbm fbn fbo fbr fbs fcb fcc fce fcf fci fcm fcn fco fcr fcs feb fec fee fef fei fem fen feo fer fes ffc ffe fff ffi ffm ffn ffo ffr ffs fib fic fie fif fii fim fin fir fis fmb fmc fme fmf fmi fmm fmn fmo fmr fms fnb fnc fne fnf fni fnm fnn fnr fns fob foc foe fof foi fom fon foo for fos frb frc fre frf fri frm frn fro frr frs fsb fsc fse fsf fsi fsm fsn fso fsr fss i-f ibb ibc ibe ibf ibi ibm ibn ibo ibr ibs icb icc ice icf ici icm icn ico icr ics ie- iec iee ief iei iem ien ier ies ifb ifc ife iff ifi ifm ifn ifo ifr ifs iib iic iie iif iii iim iin iio iir iis im- imb imc ime imf imi imm imn imo ims in- inb inc ine inf ini inm inn ino inr ins io- iob ioc ioe iof ioi iom ion ioo ior ios ir- irb irc ire irf iri irm irn iro irr irs is- isb isc ise isf isi ism isn iso isr iss m-f m-o m-r mbb mbc mbe mbf mbi mbm mbo mbr mbs mc- mcb mcc mce mcf mci mcm mcn mco mcr mcs meb mec mee mef mei mem men meo mer mes mfb mfc mfe mff mfi mfm mfn mfo mfr mfs mi- mib mic mie mif mii mim min mio mir mis mmb mmc mme mmf mmi mmm mmn mmo mmr mms mnb mnc mne mnf mni mnm mnn mno mnr mns mob moc moe mof moi mom mon moo mor mos mrb mrc mre mrf mri mrm mrn mro mrr mrs msb msc mse msf msi msm msn mso msr mss n-i nbb nbc nbe nbf nbi nbm nbn nbo nbr nbs ncb ncc nce ncf nci ncm ncn nco ncr ncs ne- neb nec nee nef nei nem nen neo ner nes nfb nfc nfe nff nfi nfn nfo nfr nfs nib nic nie nif nii nim nin nio nir nis nmb nmc nme nmi nmm nmn nmo nmr nms nnb nnc nne nnf nni nnm nnn nno nns no- nob noc noe nof noi nom non noo nor nos nrb nrc nre nrf nri nrm nrn nro nrr nrs nsb nsc nse nsf nsi nsm nsn nso nsr nss o-i ob- obb obc obe obf obi obm obn obo obr obs oc- ocb occ ocf oci ocm ocn oco ocr ocs oeb oec oee oef oei oem oen oeo oer oes of- ofb ofc ofe off ofi ofm ofn ofo ofr ofs oib oic oie oif oii oim oin oio oir ois om- omb omc ome omf omi omm omn omo omr oms on- onb onc one onf oni onn ono onr ons oo- oob ooc oof ooi oom oon ooo oor oos or- orb orc ore orf ori orm orn oro orr ors os- osb osc ose osf osi osm osn oso osr oss rbb rbc rbe rbf rbi rbm rbn rbo rbr rbs rcb rcc rce rcf rci rcm rcn rco rcr rcs re- reb rec ree ref rei rem ren reo rer res rfb rfc rfe rff rfi rfm rfn rfo rfr rfs rib ric rie rif rii rim rin rio rir ris rmb rmc rme rmf rmi rmm rmn rmo rmr rms rnb rnc rni rnm rnn rno rnr rns rob roc roe rof roi rom ron roo ror ros rrb rrc rrf rri rrm rrn rrr rrs rsb rsc rse rsf rsi rsm rsn rso rsr rss sbb sbc sbe sbf sbi sbm sbn sbo sbr sbs scb scc sce scf sci scm scn sco scr scs se- seb sec see sef sei sem sen seo ser ses sfb sfc sfe sff sfi sfm sfn sfo sfr sfs sib sic sie sif sii sim sin sio sir sis smb smc sme smf smi smm smn smo smr sms snb snc sne snf sni snm snn sno snr sns sob soc soe sof soi som son soo sor sos