ddd ddi ddk ddn ddo ddt ddx di- did dii dik din dio dit dix dki dkk dko dkt dkx dnd dni dnk dnn dno dnt dod doi dok don doo dot dox dtd dti dtk dtn dto dtt dtx dxd dxi dxn dxo dxt dxx i-d idd idi idk idn ido idt idx iid iii iin iio iit iix iki ikk iko ikt ikx in- ind ini ink inn ino int inx io- iod ioi ion ioo iot itd iti itk itn ito itt itx ixi ixn k-t kdk kdo kdt kdx kid kii kik kin kio kit kix kki kkk kkn kkt kn- knd kni knk knn kno knt knx kod koi kok kon koo kot ktk ktn kto ktt kxo n-i ndd ndi ndk ndn ndo ndt nid nii nik nin nio nit nix nki nkk nkn nko nkt nni nnk nnn nno nnt no- nod noi nok non noo not nox ntd nti ntk ntn nto ntt ntx nxd nxt o-i odd odi odn odo odt oid oii oik oin oio oit okd oki okk oko on- ond oni onk onn ono ont onx oo- ood ooi ook oon ooo oot oox ot- otd oti otk otn oto ott ox- oxi oxn oxo oxt oxx t-x tdd tdi tdk tdn tdo tdt tdx tid tii tik tin tio tit tix tkk tko tkt tnd tni tnk tnn tno tnt tnx to- tod toi tok ton too tot tox ttd tti ttk ttn tto ttt ttx txi txk txn txt xdi xdk xdt xii xin xio xit xix xnk xno xod xoi xok xon xoo xot xox xti xtx xxi xxo xxx