-er b-p bbb bbd bbe bbg bbi bbn bbp bbr bdb bdd bde bdg bdi bdp bdr be- beb bed bee beg bei ben bep ber bgb bgd bge bgg bgi bgn bgp bgr bi- bib bid bie big bii bin bip bir bnb bnd bne bng bni bnn bnp bnr bpb bpd bpe bpg bpi bpn bpp bpr brb brd bre brg bri brn brp brr dbb dbd dbe dbg dbi dbn dbp dbr ddb ddd dde ddg ddi ddn ddp ddr de- deb ded dee deg dei den dep der dgd dge dgg dgi dgn dgp dgr di- dib did die dig dii din dip dir dnb dnd dne dng dni dnn dnp dnr dpb dpd dpe dpg dpi dpn dpp dpr drb drd dre drg dri drn drp drr ebb ebd ebe ebg ebi ebn ebp ebr ed- edb edd ede edg edi edn edp edr eeb eed eee eeg een eep eer egb egd ege egg egi egn egp egr eib eid eie eig eii ein eip eir en- enb end ene eng eni enn enp enr ep- epb epd epe epg epi epn epp epr erb erd ere erg eri ern erp err g-d g-p gbd gbe gbg gbi gbn gbp gbr gdb gdd gde gdi gdn gdp gdr ge- geb ged gee geg gei gen gep ger ggb ggd ggg ggi ggn ggp ggr gib gid gie gig gii gin gip gir gnb gnd gne gni gnn gnp gnr gpb gpd gpe gpg gpi gpn gpp gpr grb grd gre grg gri grn grp grr i-d ibb ibd ibe ibg ibi ibn ibp ibr idb idd ide idg idi idn idp idr ie- ied iee ieg iei ien iep ier igb igd ige igg igi ign igp igr iib iid iie iii iin iip iir in- inb ind ine ing ini inn inp inr ipb ipd ipe ipg ipi ipn ipp ipr ir- irb ird ire irg iri irn irp irr n-i nbb nbd nbe nbg nbi nbn nbp nbr ndb ndd nde ndg ndi ndn ndp ndr ne- neb ned nee neg nei nen nep ner ngb ngd nge ngg ngi ngn ngp nib nid nie nig nii nin nip nir nnb nne nng nni nnn nnp npb npd npe npg npi npn npp npr nrb nrd nre nrg nri nrn nrp nrr p-p pbb pbd pbe pbg pbi pbn pbp pbr pdb pdd pde pdg pdi pdn pdp pdr peb ped pee peg pei pen pep per pgb pgd pge pgg pgi pgn pgp pgr pib pid pie pig pii pin pip pir pn- pnb pnd pne png pni pnn pnp pnr ppb ppd ppe ppg ppi ppn ppp ppr prb prd pre prg pri prn prp prr rbb rbd rbe rbg rbi rbn rbp rbr rdb rdd rde rdg rdi rdn rdp rdr re- reb red ree reg rei ren rep rer rgb rgd rge rgg rgi rgn rgp rgr rib rid rie rig rii rin rip rir rnb rnd rng rni rnn rnp rnr rpb rpd rpe rpg rpi rpn rpp rpr rrb rrd rrg rri rrn rrp rrr