-er bbb bbd bbe bbi bbl bbr bbt bdb bdd bde bdi bdl bdr bdt be- beb bed bee bei bel ber bet bi- bib bid bie bii bil bir bit blb bld ble bli bll blr blt brb brd bre bri brl brr brt btb btd bte bti btl btr btt dbb dbd dbe dbi dbl dbr dbt ddb ddd dde ddi ddl ddr ddt de- deb ded dee dei del der det di- dib did die dii dil dir dit dl- dlb dld dle dli dll dlr dlt drb drd dre dri drl drr drt dtb dtd dte dti dtl dtr dtt ebb ebd ebe ebi ebl ebr ebt ed- edb edd ede edi edl edr edt eeb eed eee eel eer eet eib eid eie eii eil eir eit elb eld ele eli ell elr elt erb erd ere eri erl err ert etb etd ete eti etl etr ett i-d ibb ibd ibe ibi ibl ibr ibt idb idd ide idi idl idr idt ie- ied iee iei iel ier iet iib iid iie iii iil iir iit il- ilb ild ile ili ill ilr ilt ir- irb ird ire iri irl irr irt itb itd ite iti itl itt lbb lbd lbe lbi lbl lbr lbt ldb ldd lde ldi ldl ldr ldt leb led lee lei lel ler let lib lid lie lii lil lir lit llb lld lle lli lll llr llt lrb lrd lri lrr lrt ltb ltd lte lti ltl ltr ltt rbb rbd rbe rbi rbl rbr rbt rdb rdd rde rdi rdl rdr rdt re- reb red ree rei rel rer ret rib rid rie rii ril rir rit rld rle rli rll rlr rlt rrb rrd rri rrl rrr rrt rtb rtd rte rti rtl rtr rtt tbb tbd tbe tbi tbl tbr tbt tdb tdd tde tdi tdl tdr tdt te- teb ted tee tei tel ter tet tib tid tie tii til tir tit tld tle tli tll tlr tlt trb trd tre tri trl trr trt ttb ttd tte tti ttl ttr ttt