-er b-p bbb bbd bbe bbi bbn bbp bbr bdb bdd bde bdi bdp bdr be- beb bed bee bei ben bep ber bi- bib bid bie bii bin bip bir bnb bnd bne bni bnn bnp bnr bpb bpd bpe bpi bpn bpp bpr brb brd bre bri brn brp brr dbb dbd dbe dbi dbn dbp dbr ddb ddd dde ddi ddn ddp ddr de- deb ded dee dei den dep der di- dib did die dii din dip dir dnb dnd dne dni dnn dnp dnr dpb dpd dpe dpi dpn dpp dpr drb drd dre dri drn drp drr ebb ebd ebe ebi ebn ebp ebr ed- edb edd ede edi edn edp edr eeb eed eee een eep eer eib eid eie eii ein eip eir en- enb end ene eni enn enp enr ep- epb epd epe epi epn epp epr erb erd ere eri ern erp err i-d ibb ibd ibe ibi ibn ibp ibr idb idd ide idi idn idp idr ie- ied iee iei ien iep ier iib iid iie iii iin iip iir in- inb ind ine ini inn inp inr ipb ipd ipe ipi ipn ipp ipr ir- irb ird ire iri irn irp irr n-i nbb nbd nbe nbi nbn nbp nbr ndb ndd nde ndi ndn ndp ndr ne- neb ned nee nei nen nep ner nib nid nie nii nin nip nir nnb nne nni nnn nnp npb npd npe npi npn npp npr nrb nrd nre nri nrn nrp nrr p-p pbb pbd pbe pbi pbn pbp pbr pdb pdd pde pdi pdn pdp pdr peb ped pee pei pen pep per pib pid pie pii pin pip pir pn- pnb pnd pne pni pnn pnp pnr ppb ppd ppe ppi ppn ppp ppr prb prd pre pri prn prp prr rbb rbd rbe rbi rbn rbp rbr rdb rdd rde rdi rdn rdp rdr re- reb red ree rei ren rep rer rib rid rie rii rin rip rir rnb rnd rni rnn rnp rnr rpb rpd rpe rpi rpn rpp rpr rrb rrd rri rrn rrp rrr