ddd ddn ddo ddt ddy dnd dnn dno dnt dny dod don doo dot doy dtd dtn dto dtt dty dy- dyd dyn dyo dyy ndd ndn ndo ndt ndy nnn nno nnt no- nod non noo not noy ntd ntn nto ntt nyd nyn nyo nyt nyy odd odn odo odt on- ond onn ono ont ony oo- ood oon ooo oot ot- otd otn oto ott oyd oyo tdd tdn tdo tdt tdy tnd tnn tno tnt to- tod ton too tot toy ttd ttn tto ttt tty tyd tyn tyo tyt ydn ydo ydt ydy ynd ynn yny yod yon yoo yot yoy ytd ytn yto ytt yyt yyy