-er b-p bbb bbd bbe bbi bbl bbp bbr bbt bdb bdd bde bdi bdl bdp bdr bdt be- beb bed bee bei bel bep ber bet bi- bib bid bie bii bil bip bir bit blb bld ble bli bll blp blr blt bpb bpd bpe bpi bpl bpp bpr bpt brb brd bre bri brl brp brr brt btb btd bte bti btl btp btr btt dbb dbd dbe dbi dbl dbp dbr dbt ddb ddd dde ddi ddl ddp ddr ddt de- deb ded dee dei del dep der det di- dib did die dii dil dip dir dit dl- dlb dld dle dli dll dlp dlr dlt dpb dpd dpe dpi dpl dpp dpr dpt drb drd dre dri drl drp drr drt dtb dtd dte dti dtl dtp dtr dtt ebb ebd ebe ebi ebl ebp ebr ebt ed- edb edd ede edi edl edp edr edt eeb eed eee eel eep eer eet eib eid eie eii eil eip eir eit elb eld ele eli ell elp elr elt ep- epb epd epe epi epl epp epr ept erb erd ere eri erl erp err ert etb etd ete eti etl etp etr ett i-d ibb ibd ibe ibi ibl ibp ibr ibt idb idd ide idi idl idp idr idt ie- ied iee iei iel iep ier iet iib iid iie iii iil iip iir iit il- ilb ild ile ili ill ilp ilr ilt ipb ipd ipe ipi ipl ipp ipr ipt ir- irb ird ire iri irl irp irr irt itb itd ite iti itl itp itt l-p lbb lbd lbe lbi lbl lbp lbr lbt ldb ldd lde ldi ldl ldp ldr ldt leb led lee lei lel lep ler let lib lid lie lii lil lip lir lit llb lld lle lli lll llp llr llt lpb lpd lpe lpi lpl lpp lpr lpt lrb lrd lri lrp lrr lrt ltb ltd lte lti ltl ltp ltr ltt p-p pbb pbd pbe pbi pbl pbp pbr pbt pdb pdd pde pdi pdl pdp pdr pdt peb ped pee pei pel pep per pet pib pid pie pii pil pip pir pit plb pld ple pli pll plp plr plt ppb ppd ppe ppi ppl ppp ppr ppt prb prd pre pri prl prp prr prt pt- ptb ptd pte pti ptl ptp ptr ptt rbb rbd rbe rbi rbl rbp rbr rbt rdb rdd rde rdi rdl rdp rdr rdt re- reb red ree rei rel rep rer ret rib rid rie rii ril rip rir rit rld rle rli rll rlp rlr rlt rpb rpd rpe rpi rpl rpp rpr rpt rrb rrd rri rrl rrp rrr rrt rtb rtd rte rti rtl rtp rtr rtt tbb tbd tbe tbi tbl tbp tbr tbt tdb tdd tde tdi tdl tdp tdr tdt te- teb ted tee tei tel tep ter tet tib tid tie tii til tip tir tit tld tle tli tll tlp tlr tlt tpb tpd tpe tpi tpl tpp tpr tpt trb trd tre tri trl trp trr trt ttb ttd tte tti ttl ttp ttr ttt