ddd dde ddi ddl ddp dds ddt de- ded dee dei del dep des det di- did die dii dil dip dis dit dl- dld dle dli dll dlp dls dlt dpd dpe dpi dpl dpp dps dpt dsd dse dsi dsl dsp dss dst dtd dte dti dtl dtp dts dtt ed- edd ede edi edl edp eds edt eed eee eel eep ees eet eid eie eii eil eip eis eit eld ele eli ell elp els elt ep- epd epe epi epl epp eps ept es- esd ese esi esl esp ess est etd ete eti etl etp ets ett i-d idd ide idi idl idp ids idt ie- ied iee iei iel iep ies iet iid iie iii iil iip iis iit il- ild ile ili ill ilp ils ilt ipd ipe ipi ipl ipp ips ipt is- isd ise isi isl isp iss ist itd ite iti itl itp its itt l-p ldd lde ldi ldl ldp lds ldt led lee lei lel lep les let lid lie lii lil lip lis lit lld lle lli lll llp lls llt lpd lpe lpi lpl lpp lps lpt lsd lse lsi lsl lsp lss lst ltd lte lti ltl ltp lts ltt p-p pdd pde pdi pdl pdp pds pdt ped pee pei pel pep pes pet pid pie pii pil pip pis pit pld ple pli pll plp pls plt ppd ppe ppi ppl ppp pps ppt ps- psd pse psi psl psp pss pst pt- ptd pte pti ptl ptp pts ptt sdd sde sdi sdl sdp sds sdt se- sed see sei sel sep ses set sid sie sii sil sip sis sit sld sle sli sll slp sls slt spd spe spi spl spp sps spt ss- ssd sse ssi ssl ssp sss sst std ste sti stl stp sts stt tdd tde tdi tdl tdp tds tdt te- ted tee tei tel tep tes tet tid tie tii til tip tis tit tld tle tli tll tlp tls tlt tpd tpe tpi tpl tpp tps tpt tsd tse tsi tsl tsp tss tst ttd tte tti ttl ttp tts ttt