-up b-p b-u bbb bbd bbi bbn bbo bbp bbr bbu bdb bdd bdi bdo bdp bdr bdu bi- bib bid bii bin bio bip bir biu bnb bnd bni bnn bno bnp bnr bnu bob bod boi bon boo bop bor bou bpb bpd bpi bpn bpo bpp bpr bpu brb brd bri brn bro brp brr bru bub bud bui bun buo bup bur buu dbb dbd dbi dbn dbo dbp dbr dbu ddb ddd ddi ddn ddo ddp ddr ddu di- dib did dii din dio dip dir diu dnb dnd dni dnn dno dnp dnr dob dod doi don doo dop dor dou dpb dpd dpi dpn dpo dpp dpr dpu drb drd dri drn dro drp drr dru dub dud dui dun duo dup dur i-d ibb ibd ibi ibn ibo ibp ibr ibu idb idd idi idn ido idp idr idu iib iid iii iin iio iip iir iiu in- inb ind ini inn ino inp inr inu io- iob iod ioi ion ioo iop ior iou ipb ipd ipi ipn ipo ipp ipr ipu ir- irb ird iri irn iro irp irr iru iu- iub iud iui iup iur n-i nbb nbd nbi nbn nbo nbp nbr nbu ndb ndd ndi ndn ndo ndp ndr ndu nib nid nii nin nio nip nir niu nnb nni nnn nno nnp nnu no- nob nod noi non noo nop nor nou npb npd npi npn npo npp npr npu nrb nrd nri nrn nro nrp nrr nru nub nud nui nun nuo nup nur nuu o-i ob- obb obd obi obn obo obp obr obu odb odd odi odn odo odp odr odu oib oid oii oin oio oip oir oiu on- onb ond oni onn ono onp onr onu oo- oob ood ooi oon ooo oop oor op- opb opd opi opn opo opp opr or- orb ord ori orn oro orp orr oru ou- oud oui oun ouo oup our p-p pbb pbd pbi pbn pbo pbp pbr pbu pdb pdd pdi pdn pdo pdp pdr pdu pib pid pii pin pio pip pir piu pn- pnb pnd pni pnn pno pnp pnr pnu pob pod poi pon poo pop por pou ppb ppd ppi ppn ppo ppp ppr ppu prb prd pri prn pro prp prr pru pub pud pui pun pup pur puu rbb rbd rbi rbn rbo rbp rbr rbu rdb rdd rdi rdn rdo rdp rdr rdu rib rid rii rin rio rip rir rnb rnd rni rnn rno rnp rnr rnu rob rod roi ron roo rop ror rou rpb rpd rpi rpn rpo rpp rpr rpu rrb rrd rri rrn rrp rrr rru rub rud rui run ruo rup rur ruu ubb ubi ubn ubo ubp ubr ubu udb udd udi udn udo udp udr udu uib uid uii uin uio uip uir uiu un- unb und uni unn uno unp unr unu uob uod uon uoo uop uor up- upb upd upi upn upo upp upr upu ur- urb urd uri urn uro urp urr uru uun uur uuu