ddd ddf ddo ddr ddt ddu ddy dfd dff dfo dfr dft dfu dod dof doo dor dot dou doy drd dro drr drt dru dry dtd dtf dto dtr dtt dtu dty dud duf duo dur dut duy dy- dyd dyo dyr dyu dyy fdd fdf fdo fdr fdt fdu ffd fff ffo ffr fft ffu ffy fof foo for fot fou foy frd frf fro frr frt fru fry ftd ftf fto ftr ftt ftu fty fud fuf fuo fur fut fuu fy- fyo odd odf odo odr odt odu of- ofd off ofo ofr oft ofu oo- ood oof ooo oor oot or- ord orf oro orr ort oru ory ot- otd otf oto otr ott otu ou- oud ouf ouo our out oyd oyo rdd rdf rdo rdr rdt rdu rdy rfd rff rfo rfr rft rfu rod rof roo ror rot rou roy rrd rrf rrr rrt rru rtd rtf rto rtr rtt rtu rty rud ruf ruo rur rut ruu ruy ry- ryd ryf ryo ryr ryu ryy tdd tdf tdo tdr tdt tdu tdy tfd tff tfo tfr tft tfu to- tod tof too tor tot tou toy trd trf tro trr trt tru try ttd ttf tto ttr ttt ttu tty tud tuf tuo tur tut tuu tuy tyd tyf tyo tyr tyt udd udf udo udr udt udu ufd uff ufo ufr uft ufu uod uoo uor uot ur- urd urf uro urr urt uru ury utd utf uto utr utt utu uty uur uut uuu uyo uyu ydo ydt ydy yfd yff yfr yft yfu yod yof yoo yor yot you yoy yrf yro yrt yru ytd ytf yto ytr ytt ytu yud yuo yur yut yuu yuy yyf yyt yyu yyy