ddd ddf ddi ddm ddo dds dfd dff dfi dfm dfo dfs di- did dif dii dim dio dis dmd dmf dmi dmm dmo dms dod dof doi dom doo dos dsd dsf dsi dsm dso dss fdd fdf fdi fdm fdo fds ffd fff ffi ffm ffo ffs fid fif fii fim fis fmd fmf fmi fmm fmo fms fof foi fom foo fos fsd fsf fsi fsm fso fss i-d i-f idd idf idi idm ido ids ifd iff ifi ifm ifo ifs iid iif iii iim iio iis im- imd imf imi imm imo ims io- iod iof ioi iom ioo ios is- isd isf isi ism iso iss m-f m-o mdd mdf mdi mdm mdo mds mfd mff mfi mfm mfo mfs mi- mid mif mii mim mio mis mmd mmf mmi mmm mmo mms mod mof moi mom moo mos msd msf msi msm mso mss o-i odd odf odi odm odo ods of- ofd off ofi ofm ofo ofs oid oif oii oim oio ois om- omd omf omi omm omo oms oo- ood oof ooi oom ooo oos os- osd osf osi osm oso oss sdd sdf sdi sdm sdo sds sfd sff sfi sfm sfo sfs sid sif sii sim sio sis smd smf smi smm smo sms sod sof soi som soo sos ss- ssd ssf ssi ssm sso sss