-er -ic bbb bbc bbe bbh bbi bbn bbr bcb bcc bce bch bci bcn bcr be- beb bec bee beh bei ben ber bhb bhc bhe bhh bhi bhr bi- bib bic bie bih bii bin bir bnb bnc bne bni bnn bnr brb bre brh bri brn brr c-- cbb cbc cbe cbh cbi cbn cbr ccb ccc cce cch cci ccn ccr ce- ceb cec cee ceh cei cen cer ch- chb chc che chh chi chn chr ci- cib cic cie cih cii cin cir cn- cnb cnc cne cnh cni cnn cnr crb crc cre crh cri crn crr ebb ebc ebe ebh ebi ebn ebr ec- ecb ecc ece ech eci ecn ecr eeb eec eee een eer ehb ehc ehe ehh ehi ehn ehr eib eic eie eii ein eir en- enb enc ene enh eni enn enr erb erc ere erh eri ern err h-i hbb hbc hbe hbh hbi hbn hbr hcb hcc hce hch hci hcn hcr he- heb hec hee heh hei hen her hhb hhc hhe hhh hhi hhn hhr hib hic hie hih hii hin hir hnb hnc hne hnh hnn hr- hrb hrc hre hrh hri hrn hrr ibb ibc ibe ibh ibi ibn ibr icb icc ice ich ici icn icr ie- iec iee iei ien ier ihb ihc ihe ihh ihi ihn ihr iib iic iie iih iii iin iir in- inb inc ine inh ini inn inr ir- irb irc ire iri irn irr n-i nbb nbc nbe nbi nbn nbr ncb ncc nce nch nci ncn ncr ne- neb nec nee neh nei nen ner nhb nhc nhe nhh nhi nhn nhr nib nic nie nih nii nin nir nnb nnc nne nnh nni nnn nrb nrc nre nri nrn nrr rbb rbc rbe rbh rbi rbn rbr rcb rcc rce rch rci rcn rcr re- reb rec ree reh rei ren rer rh- rhb rhc rhe rhh rhi rhn rhr rib ric rie rih rii rin rir rnb rnc rnh rni rnn rnr rrb rrc rrh rri rrn rrr