ddd dde ddf ddi ddl ddp dds de- ded dee def dei del dep des dfd dfe dff dfi dfl dfp dfs di- did die dif dii dil dip dis dl- dld dle dlf dli dll dlp dls dpd dpe dpf dpi dpl dpp dps dsd dse dsf dsi dsl dsp dss ed- edd ede edf edi edl edp eds eed eee eef eel eep ees ef- efd efe eff efi efl efp efs eid eie eif eii eil eip eis eld ele elf eli ell elp els ep- epd epe epf epi epl epp eps es- esd ese esf esi esl esp ess fdd fde fdf fdi fdl fdp fds fed fee fef fei fel fep fes ffd ffe fff ffi ffl ffp ffs fid fie fif fii fil fip fis fld fle flf fli fll flp fls fpd fpe fpi fpl fpp fps fsd fse fsf fsi fsl fsp fss i-d i-f idd ide idf idi idl idp ids ie- ied iee ief iei iel iep ies ifd ife iff ifi ifl ifp ifs iid iie iif iii iil iip iis il- ild ile ilf ili ill ilp ils ipd ipe ipf ipi ipl ipp ips is- isd ise isf isi isl isp iss l-p ldd lde ldf ldi ldl ldp lds led lee lef lei lel lep les lfd lfe lff lfi lfl lfp lfs lid lie lif lii lil lip lis lld lle llf lli lll llp lls lpd lpe lpf lpi lpl lpp lps lsd lse lsf lsi lsl lsp lss p-p pdd pde pdf pdi pdl pdp pds ped pee pef pei pel pep pes pfd pfe pff pfi pfl pfp pfs pid pie pif pii pil pip pis pld ple plf pli pll plp pls ppd ppe ppf ppi ppl ppp pps ps- psd pse psf psi psl psp pss sdd sde sdf sdi sdl sdp sds se- sed see sef sei sel sep ses sfd sfe sff sfi sfl sfp sfs sid sie sif sii sil sip sis sld sle slf sli sll slp sls spd spe spf spi spl spp sps ss- ssd sse ssf ssi ssl ssp sss