b-p bbb bbd bbe bbi bbl bbp bbs bbt bdb bdd bde bdi bdl bdp bds bdt be- beb bed bee bei bel bep bes bet bi- bib bid bie bii bil bip bis bit blb bld ble bli bll blp bls blt bpb bpd bpe bpi bpl bpp bps bpt bsb bsd bse bsi bsl bsp bss bst btb btd bte bti btl btp bts btt dbb dbd dbe dbi dbl dbp dbs dbt ddb ddd dde ddi ddl ddp dds ddt de- deb ded dee dei del dep des det di- dib did die dii dil dip dis dit dl- dlb dld dle dli dll dlp dls dlt dpb dpd dpe dpi dpl dpp dps dpt dsb dsd dse dsi dsl dsp dss dst dtb dtd dte dti dtl dtp dts dtt ebb ebd ebe ebi ebl ebp ebs ebt ed- edb edd ede edi edl edp eds edt eeb eed eee eel eep ees eet eib eid eie eii eil eip eis eit elb eld ele eli ell elp els elt ep- epb epd epe epi epl epp eps ept es- esb esd ese esi esl esp ess est etb etd ete eti etl etp ets ett i-d ibb ibd ibe ibi ibl ibp ibs ibt idb idd ide idi idl idp ids idt ie- ied iee iei iel iep ies iet iib iid iie iii iil iip iis iit il- ilb ild ile ili ill ilp ils ilt ipb ipd ipe ipi ipl ipp ips ipt is- isb isd ise isi isl isp iss ist itb itd ite iti itl itp its itt l-p lbb lbd lbe lbi lbl lbp lbs lbt ldb ldd lde ldi ldl ldp lds ldt leb led lee lei lel lep les let lib lid lie lii lil lip lis lit llb lld lle lli lll llp lls llt lpb lpd lpe lpi lpl lpp lps lpt lsb lsd lse lsi lsl lsp lss lst ltb ltd lte lti ltl ltp lts ltt p-p pbb pbd pbe pbi pbl pbp pbs pbt pdb pdd pde pdi pdl pdp pds pdt peb ped pee pei pel pep pes pet pib pid pie pii pil pip pis pit plb pld ple pli pll plp pls plt ppb ppd ppe ppi ppl ppp pps ppt ps- psb psd pse psi psl psp pss pst pt- ptb ptd pte pti ptl ptp pts ptt sbb sbd sbe sbi sbl sbp sbs sbt sdb sdd sde sdi sdl sdp sds sdt se- seb sed see sei sel sep ses set sib sid sie sii sil sip sis sit slb sld sle sli sll slp sls slt spb spd spe spi spl spp sps spt ss- ssb ssd sse ssi ssl ssp sss sst stb std ste sti stl stp sts stt tbb tbd tbe tbi tbl tbp tbs tbt tdb tdd tde tdi tdl tdp tds tdt te- teb ted tee tei tel tep tes tet tib tid tie tii til tip tis tit tld tle tli tll tlp tls tlt tpb tpd tpe tpi tpl tpp tps tpt tsb tsd tse tsi tsl tsp tss tst ttb ttd tte tti ttl ttp tts ttt