-er b-p bbb bbe bbf bbi bbn bbp bbr be- beb bee bef bei ben bep ber bfb bfe bff bfi bfn bfp bfr bi- bib bie bif bii bin bip bir bnb bne bnf bni bnn bnp bnr bpb bpe bpf bpi bpn bpp bpr brb bre brf bri brn brp brr ebb ebe ebf ebi ebn ebp ebr eeb eee eef een eep eer ef- efb efe eff efi efp efr eib eie eif eii ein eip eir en- enb ene enf eni enn enp enr ep- epb epe epf epi epn epp epr erb ere erf eri ern erp err fbb fbe fbf fbi fbn fbp fbr feb fee fef fei fen fep fer ffe fff ffi ffn ffp ffr fib fie fif fii fin fip fir fnb fne fnf fni fnn fnp fnr fpb fpe fpi fpn fpp fpr frb fre frf fri frn frp frr i-f ibb ibe ibf ibi ibn ibp ibr ie- iee ief iei ien iep ier ifb ife iff ifi ifn ifp ifr iib iie iif iii iin iip iir in- inb ine inf ini inn inp inr ipb ipe ipf ipi ipn ipp ipr ir- irb ire irf iri irn irp irr n-i nbb nbe nbf nbi nbn nbp nbr ne- neb nee nef nei nen nep ner nfb nfe nff nfi nfn nfp nfr nib nie nif nii nin nip nir nnb nne nnf nni nnn nnp npb npe npf npi npn npp npr nrb nre nrf nri nrn nrp nrr p-p pbb pbe pbf pbi pbn pbp pbr peb pee pef pei pen pep per pfb pfe pff pfi pfn pfp pfr pib pie pif pii pin pip pir pn- pnb pne pnf pni pnn pnp pnr ppb ppe ppf ppi ppn ppp ppr prb pre prf pri prn prp prr rbb rbe rbf rbi rbn rbp rbr re- reb ree ref rei ren rep rer rfb rfe rff rfi rfn rfp rfr rib rie rif rii rin rip rir rnb rni rnn rnp rnr rpb rpe rpf rpi rpn rpp rpr rrb rrf rri rrn rrp rrr