ddd ddf ddi ddo ddr dds ddu dfd dff dfi dfo dfr dfs dfu di- did dif dii dio dir dis diu dod dof doi doo dor dos dou drd dri dro drr drs dru dsd dsf dsi dso dsr dss dsu dud duf dui duo dur dus fdd fdf fdi fdo fdr fds fdu ffd fff ffi ffo ffr ffs ffu fid fif fii fir fis fiu fof foi foo for fos fou frd frf fri fro frr frs fru fsd fsf fsi fso fsr fss fsu fud fuf fui fuo fur fus fuu i-d i-f idd idf idi ido idr ids idu ifd iff ifi ifo ifr ifs ifu iid iif iii iio iir iis iiu io- iod iof ioi ioo ior ios iou ir- ird irf iri iro irr irs iru is- isd isf isi iso isr iss isu iu- iud iui iur ius o-i odd odf odi odo odr ods odu of- ofd off ofi ofo ofr ofs ofu oid oif oii oio oir ois oiu oo- ood oof ooi ooo oor oos or- ord orf ori oro orr ors oru os- osd osf osi oso osr oss osu ou- oud ouf oui ouo our ous rdd rdf rdi rdo rdr rds rdu rfd rff rfi rfo rfr rfs rfu rid rif rii rio rir ris rod rof roi roo ror ros rou rrd rrf rri rrr rrs rru rsd rsf rsi rso rsr rss rsu rud ruf rui ruo rur rus ruu sdd sdf sdi sdo sdr sds sdu sfd sff sfi sfo sfr sfs sfu sid sif sii sio sir sis siu sod sof soi soo sor sos sou sr- srd srf sri sro srr srs ss- ssd ssf ssi sso ssr sss ssu sud suf sui suo sur sus suu udd udf udi udo udr uds udu ufd uff ufi ufo ufr ufs ufu uid uif uii uio uir uis uiu uod uoo uor uos ur- urd urf uri uro urr urs uru usd usf usi uso usr uss usu uur uus uuu