b-p bbb bbd bbe bbl bbp bbt bdb bdd bde bdl bdp bdt be- beb bed bee bel bep bet blb bld ble bll blp blt bpb bpd bpe bpl bpp bpt btb btd bte btl btp btt dbb dbd dbe dbl dbp dbt ddb ddd dde ddl ddp ddt de- deb ded dee del dep det dl- dlb dld dle dll dlp dlt dpb dpd dpe dpl dpp dpt dtb dtd dte dtl dtp dtt ebb ebd ebe ebl ebp ebt ed- edb edd ede edl edp edt eeb eed eee eel eep eet elb eld ele ell elp elt ep- epb epd epe epl epp ept etb etd ete etl etp ett l-p lbb lbd lbe lbl lbp lbt ldb ldd lde ldl ldp ldt leb led lee lel lep let llb lld lle lll llp llt lpb lpd lpe lpl lpp lpt ltb ltd lte ltl ltp ltt p-p pbb pbd pbe pbl pbp pbt pdb pdd pde pdl pdp pdt peb ped pee pel pep pet plb pld ple pll plp plt ppb ppd ppe ppl ppp ppt pt- ptb ptd pte ptl ptp ptt tbb tbd tbe tbl tbp tbt tdb tdd tde tdl tdp tdt te- teb ted tee tel tep tet tld tle tll tlp tlt tpb tpd tpe tpl tpp tpt ttb ttd tte ttl ttp ttt