-er -ic bbb bbc bbe bbf bbi bbn bbo bbr bcb bcc bce bcf bci bcn bco bcr be- beb bec bee bef bei ben beo ber bfb bfc bfe bff bfi bfn bfo bfr bi- bib bic bie bif bii bin bio bir bnb bnc bne bnf bni bnn bno bnr bob boc boe bof boi bon boo bor brb bre brf bri brn bro brr c-- cbb cbc cbe cbf cbi cbn cbo cbr ccb ccc cce ccf cci ccn cco ccr ce- ceb cec cee cef cei cen ceo cer cfb cfc cfe cff cfi cfn cfo cfr ci- cib cic cie cif cii cin cio cir cn- cnb cnc cne cnf cni cnn cno cnr co- cob coc coe cof coi con coo cor crb crc cre crf cri crn cro crr ebb ebc ebe ebf ebi ebn ebo ebr ec- ecb ecc ece ecf eci ecn eco ecr eeb eec eee eef een eeo eer ef- efb efc efe eff efi efo efr eib eic eie eif eii ein eio eir en- enb enc ene enf eni enn eno enr eo- eob eoc eoe eof eoi eon eoo eor erb erc ere erf eri ern ero err fbb fbc fbe fbf fbi fbn fbo fbr fcb fcc fce fcf fci fcn fco fcr feb fec fee fef fei fen feo fer ffc ffe fff ffi ffn ffo ffr fib fic fie fif fii fin fir fnb fnc fne fnf fni fnn fnr fob foc foe fof foi fon foo for frb frc fre frf fri frn fro frr i-f ibb ibc ibe ibf ibi ibn ibo ibr icb icc ice icf ici icn ico icr ie- iec iee ief iei ien ier ifb ifc ife iff ifi ifn ifo ifr iib iic iie iif iii iin iio iir in- inb inc ine inf ini inn ino inr io- iob ioc ioe iof ioi ion ioo ior ir- irb irc ire irf iri irn iro irr n-i nbb nbc nbe nbf nbi nbn nbo nbr ncb ncc nce ncf nci ncn nco ncr ne- neb nec nee nef nei nen neo ner nfb nfc nfe nff nfi nfn nfo nfr nib nic nie nif nii nin nio nir nnb nnc nne nnf nni nnn nno no- nob noc noe nof noi non noo nor nrb nrc nre nrf nri nrn nro nrr o-i ob- obb obc obe obf obi obn obo obr oc- ocb occ ocf oci ocn oco ocr oeb oec oee oef oei oen oeo oer of- ofb ofc ofe off ofi ofn ofo ofr oib oic oie oif oii oin oio oir on- onb onc one onf oni onn ono onr oo- oob ooc oof ooi oon ooo oor or- orb orc ore orf ori orn oro orr rbb rbc rbe rbf rbi rbn rbo rbr rcb rcc rce rcf rci rcn rco rcr re- reb rec ree ref rei ren reo rer rfb rfc rfe rff rfi rfn rfo rfr rib ric rie rif rii rin rio rir rnb rnc rni rnn rno rnr rob roc roe rof roi ron roo ror rrb rrc rrf rri rrn rrr