ddd ddi ddn ddo ddp ddt di- did dii din dio dip dit dnd dni dnn dno dnp dnt dod doi don doo dop dot dpd dpi dpn dpo dpp dpt dtd dti dtn dto dtp dtt i-d idd idi idn ido idp idt iid iii iin iio iip iit in- ind ini inn ino inp int io- iod ioi ion ioo iop iot ipd ipi ipn ipo ipp ipt itd iti itn ito itp itt n-i ndd ndi ndn ndo ndp ndt nid nii nin nio nip nit nni nnn nno nnp nnt no- nod noi non noo nop not npd npi npn npo npp npt ntd nti ntn nto ntp ntt o-i odd odi odn odo odp odt oid oii oin oio oip oit on- ond oni onn ono onp ont oo- ood ooi oon ooo oop oot op- opd opi opn opo opp opt ot- otd oti otn oto otp ott p-p pdd pdi pdn pdo pdp pdt pid pii pin pio pip pit pn- pnd pni pnn pno pnp pnt pod poi pon poo pop pot ppd ppi ppn ppo ppp ppt pt- ptd pti ptn pto ptp ptt tdd tdi tdn tdo tdp tdt tid tii tin tio tip tit tnd tni tnn tno tnp tnt to- tod toi ton too top tot tpd tpi tpn tpo tpp tpt ttd tti ttn tto ttp ttt