-up b-p b-u bbb bbd bbn bbo bbp bbr bbu bby bdb bdd bdo bdp bdr bdu bdy bnb bnd bnn bno bnp bnr bnu bob bod bon boo bop bor bou boy bpb bpd bpn bpo bpp bpr bpu bpy brb brd brn bro brp brr bru bry bub bud bun buo bup bur buu buy by- byd byn byo byp byr byu dbb dbd dbn dbo dbp dbr dbu dby ddb ddd ddn ddo ddp ddr ddu ddy dnb dnd dnn dno dnp dnr dny dob dod don doo dop dor dou doy dpb dpd dpn dpo dpp dpr dpu drb drd drn dro drp drr dru dry dub dud dun duo dup dur duy dy- dyb dyd dyn dyo dyp dyr dyu dyy nbb nbd nbn nbo nbp nbr nbu ndb ndd ndn ndo ndp ndr ndu ndy nnb nnn nno nnp nnu no- nob nod non noo nop nor nou noy npb npd npn npo npp npr npu nrb nrd nrn nro nrp nrr nru nry nub nud nun nuo nup nur nuu nuy nyd nyn nyo nyp nyu nyy ob- obb obd obn obo obp obr obu oby odb odd odn odo odp odr odu on- onb ond onn ono onp onr onu ony oo- oob ood oon ooo oop oor op- opb opd opn opo opp opr opy or- orb ord orn oro orp orr oru ory ou- oud oun ouo oup our oyd oyo p-p pbb pbd pbn pbo pbp pbr pbu pby pdb pdd pdn pdo pdp pdr pdu pn- pnb pnd pnn pno pnp pnr pnu pny pob pod pon poo pop por pou poy ppb ppd ppn ppo ppp ppr ppu prb prd prn pro prp prr pru pry pub pud pun pup pur puu puy py- pyb pyd pyn pyo pyr pyu rbb rbd rbn rbo rbp rbr rbu rdb rdd rdn rdo rdp rdr rdu rdy rnb rnd rnn rno rnp rnr rnu rny rob rod ron roo rop ror rou roy rpb rpd rpn rpo rpp rpr rpu rrb rrd rrn rrp rrr rru rub rud run ruo rup rur ruu ruy ry- ryd ryn ryo ryr ryu ryy ubb ubn ubo ubp ubr ubu uby udb udd udn udo udp udr udu un- unb und unn uno unp unr unu uny uob uod uon uoo uop uor up- upb upd upn upo upp upr upu ur- urb urd urn uro urp urr uru ury uun uur uuu uyo uyu ybp ybr yby ydn ydo ydy ynd ynn ynp ynu yny yob yod yon yoo yop yor you yoy ypd ypo ypu yrn yro yrp yru yud yun yuo yup yur yuu yuy yyb yyu yyy