ddd dde ddf ddi ddo dds de- ded dee def dei deo des dfd dfe dff dfi dfo dfs di- did die dif dii dio dis dod doe dof doi doo dos dsd dse dsf dsi dso dss ed- edd ede edf edi edo eds eed eee eef eeo ees ef- efd efe eff efi efo efs eid eie eif eii eio eis eo- eod eoe eof eoi eoo eos es- esd ese esf esi eso ess fdd fde fdf fdi fdo fds fed fee fef fei feo fes ffd ffe fff ffi ffo ffs fid fie fif fii fis foe fof foi foo fos fsd fse fsf fsi fso fss i-d i-f idd ide idf idi ido ids ie- ied iee ief iei ies ifd ife iff ifi ifo ifs iid iie iif iii iio iis io- iod ioe iof ioi ioo ios is- isd ise isf isi iso iss o-i odd ode odf odi odo ods oed oee oef oei oeo oes of- ofd ofe off ofi ofo ofs oid oie oif oii oio ois oo- ood oof ooi ooo oos os- osd ose osf osi oso oss sdd sde sdf sdi sdo sds se- sed see sef sei seo ses sfd sfe sff sfi sfo sfs sid sie sif sii sio sis sod soe sof soi soo sos ss- ssd sse ssf ssi sso sss