ddd ddf ddi ddr dds ddu dfd dff dfi dfr dfs dfu di- did dif dii dir dis diu drd dri drr drs dru dsd dsf dsi dsr dss dsu dud duf dui dur dus fdd fdf fdi fdr fds fdu ffd fff ffi ffr ffs ffu fid fif fii fir fis fiu frd frf fri frr frs fru fsd fsf fsi fsr fss fsu fud fuf fui fur fus fuu i-d i-f idd idf idi idr ids idu ifd iff ifi ifr ifs ifu iid iif iii iir iis iiu ir- ird irf iri irr irs iru is- isd isf isi isr iss isu iu- iud iui iur ius rdd rdf rdi rdr rds rdu rfd rff rfi rfr rfs rfu rid rif rii rir ris rrd rrf rri rrr rrs rru rsd rsf rsi rsr rss rsu rud ruf rui rur rus ruu sdd sdf sdi sdr sds sdu sfd sff sfi sfr sfs sfu sid sif sii sir sis siu sr- srd srf sri srr srs ss- ssd ssf ssi ssr sss ssu sud suf sui sur sus suu udd udf udi udr uds udu ufd uff ufi ufr ufs ufu uid uif uii uir uis uiu ur- urd urf uri urr urs uru usd usf usi usr uss usu uur uus uuu