ddd ddi ddk ddn ddo ddp ddr di- did dii dik din dio dip dir dki dkk dko dkp dkr dnd dni dnk dnn dno dnp dnr dod doi dok don doo dop dor dpd dpi dpk dpn dpo dpp dpr drd dri drk drn dro drp drr i-d idd idi idk idn ido idp idr iid iii iin iio iip iir iki ikk iko ikr in- ind ini ink inn ino inp inr io- iod ioi ion ioo iop ior ipd ipi ipn ipo ipp ipr ir- ird iri irk irn iro irp irr kdk kdo kdp kdr kid kii kik kin kio kip kir kki kkk kkn kkp kkr kn- knd kni knk knn kno knp knr kod koi kok kon koo kop kor kpd kpi kpk kpn kpo kpp kpr krd kri krk krn kro krp krr n-i ndd ndi ndk ndn ndo ndp ndr nid nii nik nin nio nip nir nki nkk nkn nko nkp nkr nni nnk nnn nno nnp no- nod noi nok non noo nop nor npd npi npn npo npp npr nrd nri nrk nrn nro nrp nrr o-i odd odi odn odo odp odr oid oii oik oin oio oip oir okd oki okk oko okp okr on- ond oni onk onn ono onp onr oo- ood ooi ook oon ooo oop oor op- opd opi opk opn opo opp opr or- ord ori ork orn oro orp orr p-p pdd pdi pdk pdn pdo pdp pdr pid pii pik pin pio pip pir pkd pki pkn pko pkp pkr pn- pnd pni pnk pnn pno pnp pnr pod poi pok pon poo pop por ppd ppi ppk ppn ppo ppp ppr prd pri prk prn pro prp prr rdd rdi rdn rdo rdp rdr rid rii rik rin rio rip rir rkk rko rkp rnd rni rnn rno rnp rnr rod roi rok ron roo rop ror rpd rpi rpk rpn rpo rpp rpr rrd rri rrk rrn rrp rrr