ddd ddi ddn ddo ddp di- did dii din dio dip div dnd dni dnn dno dnp dod doi don doo dop dov dpd dpi dpn dpo dpp dpv dvd dvi dvn dvp i-d i-v idd idi idn ido idp idv iid iii iin iio iip in- ind ini inn ino inp inv io- iod ioi ion ioo iop iov ipd ipi ipn ipo ipp ipv ivd ivi ivo ivp ivv n-i ndd ndi ndn ndo ndp ndv nid nii nin nio nip niv nni nnn nno nnp nnv no- nod noi non noo nop nov npd npi npn npo npp npv nvd nvi nvn nvp nvv o-i odd odi odn odo odp odv oid oii oin oio oip oiv on- ond oni onn ono onp oo- ood ooi oon ooo oop oov op- opd opi opn opo opp opv ov- ovd ovi ovo ovp ovv p-p pdd pdi pdn pdo pdp pdv pid pii pin pio pip piv pn- pnd pni pnn pno pnp pnv pod poi pon poo pop pov ppd ppi ppn ppo ppp ppv pvd pvi pvn pvo pvp pvv vdd vdi vdo vdp vdv vi- vid vii vin vio vip viv vn- vnd vni vno vnp vnv vod voi von voo vop vov vpd vpi vpn vpo vpp vvi vvo vvv