-er bbb bbd bbe bbi bbn bbr bdb bdd bde bdi bdr bdv be- beb bed bee bei ben ber bev bi- bib bid bie bii bin bir biv bnb bnd bne bni bnn bnr bnv brb brd bre bri brn brr brv bvb bvd bve bvi bvn bvr bvv dbb dbd dbe dbi dbn dbr dbv ddb ddd dde ddi ddn ddr de- deb ded dee dei den der dev di- dib did die dii din dir div dnb dnd dne dni dnn dnr drb drd dre dri drn drr drv dvb dvd dve dvi dvn dvr ebb ebd ebe ebi ebn ebr ebv ed- edb edd ede edi edn edr eeb eed eee een eer eev eib eid eie eii ein eir eiv en- enb end ene eni enn enr env erb erd ere eri ern err erv evb evd eve evi evn evr evv i-d i-v ibb ibd ibe ibi ibn ibr ibv idb idd ide idi idn idr idv ie- ied iee iei ien ier iev iib iid iie iii iin iir in- inb ind ine ini inn inr inv ir- irb ird ire iri irn irr irv ivb ivd ive ivi ivr ivv n-i nbb nbd nbe nbi nbn nbr nbv ndb ndd nde ndi ndn ndr ndv ne- neb ned nee nei nen ner nev nib nid nie nii nin nir niv nnb nne nni nnn nnv nrb nrd nre nri nrn nrr nrv nvb nvd nve nvi nvn nvv rbb rbd rbe rbi rbn rbr rdb rdd rde rdi rdn rdr rdv re- reb red ree rei ren rer rev rib rid rie rii rin rir riv rnb rnd rni rnn rnr rnv rrb rrd rri rrn rrr rvb rvd rve rvi rvn rvr rvv v-e vbd vbi vbr vbv vdb vdd vde vdi vdr vdv veb ved vee vei ven ver vi- vib vid vie vii vin vir viv vn- vnd vni vnr vnv vrb vrd vre vri vrn vrr vvb vvi vvr vvv