ddd ddf ddi ddn ddo ddp ddt dfd dff dfi dfn dfo dfp dft di- did dif dii din dio dip dit dnd dnf dni dnn dno dnp dnt dod dof doi don doo dop dot dpd dpf dpi dpn dpo dpp dpt dtd dtf dti dtn dto dtp dtt fdd fdf fdi fdn fdo fdp fdt ffd fff ffi ffn ffo ffp fft fid fif fii fin fip fit fnd fnf fni fnn fnp fnt fof foi fon foo fop fot fpd fpi fpn fpo fpp fpt ftd ftf fti ftn fto ftp ftt i-d i-f idd idf idi idn ido idp idt ifd iff ifi ifn ifo ifp ift iid iif iii iin iio iip iit in- ind inf ini inn ino inp int io- iod iof ioi ion ioo iop iot ipd ipf ipi ipn ipo ipp ipt itd itf iti itn ito itp itt n-i ndd ndf ndi ndn ndo ndp ndt nfd nff nfi nfn nfo nfp nft nid nif nii nin nio nip nit nnf nni nnn nno nnp nnt no- nod nof noi non noo nop not npd npf npi npn npo npp npt ntd ntf nti ntn nto ntp ntt o-i odd odf odi odn odo odp odt of- ofd off ofi ofn ofo ofp oft oid oif oii oin oio oip oit on- ond onf oni onn ono onp ont oo- ood oof ooi oon ooo oop oot op- opd opf opi opn opo opp opt ot- otd otf oti otn oto otp ott p-p pdd pdf pdi pdn pdo pdp pdt pfd pff pfi pfn pfo pfp pft pid pif pii pin pio pip pit pn- pnd pnf pni pnn pno pnp pnt pod pof poi pon poo pop pot ppd ppf ppi ppn ppo ppp ppt pt- ptd ptf pti ptn pto ptp ptt tdd tdf tdi tdn tdo tdp tdt tfd tff tfi tfn tfo tfp tft tid tif tii tin tio tip tit tnd tnf tni tnn tno tnp tnt to- tod tof toi ton too top tot tpd tpf tpi tpn tpo tpp tpt ttd ttf tti ttn tto ttp ttt