ddd ddf ddi ddr dds ddu ddy dfd dff dfi dfr dfs dfu di- did dif dii dir dis diu diy drd dri drr drs dru dry dsd dsf dsi dsr dss dsu dsy dud duf dui dur dus duy dy- dyd dyr dys dyu dyy fdd fdf fdi fdr fds fdu ffd fff ffi ffr ffs ffu ffy fid fif fii fir fis fiu frd frf fri frr frs fru fry fsd fsf fsi fsr fss fsu fud fuf fui fur fus fuu fy- fyi i-d i-f idd idf idi idr ids idu idy ifd iff ifi ifr ifs ifu ify iid iif iii iir iis iiu ir- ird irf iri irr irs iru iry is- isd isf isi isr iss isu isy iu- iud iui iur ius iyr iys iyy rdd rdf rdi rdr rds rdu rdy rfd rff rfi rfr rfs rfu rid rif rii rir ris riy rrd rrf rri rrr rrs rru rsd rsf rsi rsr rss rsu rud ruf rui rur rus ruu ruy ry- ryd ryf ryr rys ryu ryy sdd sdf sdi sdr sds sdu sdy sfd sff sfi sfr sfs sfu sid sif sii sir sis siu sr- srd srf sri srr srs sry ss- ssd ssf ssi ssr sss ssu sud suf sui sur sus suu suy sy- syd syi syr sys syu 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 ury usd usf usi usr uss usu uur uus uuu uyi uys uyu yds ydy yfd yff yfr yfs yfu yid yif yii yir yis yrf yrs yru ysi ysr yss ysu ysy yud yui yur yus yuu yuy yyf yys yyu yyy