ddd ddi ddo ddt ddy di- did dii dio dit diy dod doi doo dot doy dtd dti dto dtt dty dy- dyd dyo dyy i-d idd idi ido idt idy iid iii iio iit io- iod ioi ioo iot itd iti ito itt ity iyo iyt iyy o-i odd odi odo odt oid oii oio oit oo- ood ooi ooo oot ot- otd oti oto ott oyd oyi oyo tdd tdi tdo tdt tdy tid tii tio tit tiy to- tod toi too tot toy ttd tti tto ttt tty tyd tyo tyt ydo ydt ydy yid yii yio yit yod yoi yoo yot yoy ytd yto ytt yyt yyy