-er -ic bbb bbc bbd bbe bbf bbh bbi bbn bbr bcb bcc bcd bce bcf bch bci bcn bcr bdb bdc bdd bde bdf bdh bdi bdr be- beb bec bed bee bef beh bei ben ber bfb bfc bfd bfe bff bfh bfi bfn bfr bhb bhc bhd bhe bhf bhh bhi bhr bi- bib bic bid bie bif bih bii bin bir bnb bnc bnd bne bnf bni bnn bnr brb brd bre brf brh bri brn brr c-- cbb cbc cbd cbe cbf cbh cbi cbn cbr ccb ccc ccd cce ccf cch cci ccn ccr cdb cdc cdd cde cdf cdh cdi cdn cdr ce- ceb cec ced cee cef ceh cei cen cer cfb cfc cfd cfe cff cfh cfi cfn cfr ch- chb chc chd che chf chh chi chn chr ci- cib cic cid cie cif cih cii cin cir cn- cnb cnc cnd cne cnf cnh cni cnn cnr crb crc crd cre crf crh cri crn crr dbb dbc dbd dbe dbf dbh dbi dbn dbr dcb dcc dcd dce dcf dci dcn dcr ddb ddc ddd dde ddf ddh ddi ddn ddr de- deb dec ded dee def deh dei den der dfb dfc dfd dfe dff dfh dfi dfn dfr dh- dhb dhc dhd dhe dhf dhh dhi dhr di- dib dic did die dif dih dii din dir dnb dnc dnd dne dnf dnh dni dnn dnr drb drc drd dre dri drn drr ebb ebc ebd ebe ebf ebh ebi ebn ebr ec- ecb ecc ecd ece ecf ech eci ecn ecr ed- edb edc edd ede edf edh edi edn edr eeb eec eed eee eef een eer ef- efb efc efd efe eff efh efi efr ehb ehc ehd ehe ehf ehh ehi ehn ehr eib eic eid eie eif eii ein eir en- enb enc end ene enf enh eni enn enr erb erc erd ere erf erh eri ern err fbb fbc fbd fbe fbf fbh fbi fbn fbr fcb fcc fcd fce fcf fci fcn fcr fdb fdc fdd fde fdf fdh fdi fdn fdr feb fec fed fee fef feh fei fen fer ffc ffd ffe fff ffh ffi ffn ffr fhb fhc fhe fhf fhh fhi fhn fhr fib fic fid fie fif fih fii fin fir fnb fnc fnd fne fnf fnh fni fnn fnr frb frc frd fre frf frh fri frn frr h-i hbb hbc hbd hbe hbf hbh hbi hbn hbr hcb hcc hcd hce hcf hch hci hcn hcr hdb hdc hdd hde hdf hdh hdi hdn hdr he- heb hec hed hee hef heh hei hen her hfb hfc hfd hfe hff hfh hfi hfn hfr hhb hhc hhd hhe hhf hhh hhi hhn hhr hib hic hid hie hif hih hii hin hir hnb hnc hnd hne hnf hnh hnn hr- hrb hrc hrd hre hrf hrh hri hrn hrr i-d i-f ibb ibc ibd ibe ibf ibh ibi ibn ibr icb icc icd ice icf ich ici icn icr idb idc idd ide idf idh idi idn idr ie- iec ied iee ief iei ien ier ifb ifc ifd ife iff ifi ifn ifr ihb ihc ihd ihe ihf ihh ihi ihn ihr iib iic iid iie iif iih iii iin iir in- inb inc ind ine inf inh ini inn inr ir- irb irc ird ire irf iri irn irr n-i nbb nbc nbd nbe nbf nbi nbn nbr ncb ncc ncd nce ncf nch nci ncn ncr ndb ndc ndd nde ndf ndh ndi ndn ndr ne- neb nec ned nee nef neh nei nen ner nfb nfc nfd nfe nff nfi nfn nfr nhb nhc nhd nhe nhf nhh nhi nhn nhr nib nic nid nie nif nih nii nin nir nnb nnc nne nnf nnh nni nnn nrb nrc nrd nre nrf nri nrn nrr rbb rbc rbd rbe rbf rbh rbi rbn rbr rcb rcc rcd rce rcf rch rci rcn rcr rdb rdc rdd rde rdf rdh rdi rdn rdr re- reb rec red ree ref reh rei ren rer rfb rfc rfd rfe rff rfh rfi rfn rfr rh- rhb rhc rhd rhe rhf rhh rhi rhn rhr rib ric rid rie rif rih rii rin rir rnb rnc rnd rnh rni rnn rnr rrb rrc rrd rrf rrh rri rrn rrr