ddd ddf ddo ddr dds ddt ddu ddy dfd dff dfo dfr dfs dft dfu dod dof doo dor dos dot dou doy drd dro drr drs drt dru dry dsd dsf dso dsr dss dst dsu dsy dtd dtf dto dtr dts dtt dtu dty dud duf duo dur dus dut duy dy- dyd dyo dyr dys dyu dyy fdd fdf fdo fdr fds fdt fdu ffd fff ffo ffr ffs fft ffu ffy fof foo for fos fot fou foy frd frf fro frr frs frt fru fry fsd fsf fso fsr fss fst fsu ftd ftf fto ftr fts ftt ftu fty fud fuf fuo fur fus fut fuu fy- fyo odd odf odo odr ods odt odu of- ofd off ofo ofr ofs oft ofu oo- ood oof ooo oor oos oot or- ord orf oro orr ors ort oru ory os- osd osf oso osr oss ost osu ot- otd otf oto otr ots ott otu ou- oud ouf ouo our ous out oyd oyo oys rdd rdf rdo rdr rds rdt rdu rdy rfd rff rfo rfr rfs rft rfu rod rof roo ror ros rot rou roy rrd rrf rrr rrs rrt rru rsd rsf rso rsr rss rst rsu rtd rtf rto rtr rts rtt rtu rty rud ruf ruo rur rus rut ruu ruy ry- ryd ryf ryo ryr rys ryu ryy sdd sdf sdo sdr sds sdt sdu sdy sfd sff sfo sfr sfs sft sfu sod sof soo sor sos sot sou soy sr- srd srf sro srr srs srt sry ss- ssd ssf sso ssr sss sst ssu std stf sto str sts stt stu sty sud suf suo sur sus sut suu suy sy- syd syr sys syt syu tdd tdf tdo tdr tds tdt tdu tdy tfd tff tfo tfr tfs tft tfu to- tod tof too tor tos tot tou toy trd trf tro trr trs trt tru try tsd tsf tso tsr tss tst tsu tsy ttd ttf tto ttr tts ttt ttu tty tud tuf tuo tur tus tut tuu tuy tyd tyf tyo tyr tys tyt udd udf udo udr uds udt udu ufd uff ufo ufr ufs uft ufu uod uoo uor uos uot ur- urd urf uro urr urs urt uru ury usd usf uso usr uss ust usu utd utf uto utr uts utt utu uty uur uus uut uuu uyo uys uyu ydo yds ydt ydy yfd yff yfr yfs yft yfu yod yof yoo yor yos yot you yoy yrf yro yrs yrt yru yso ysr yss yst ysu ysy ytd ytf yto ytr yts ytt ytu yud yuo yur yus yut yuu yuy yyf yys yyt yyu yyy