-up b-p b-u bbb bbn bbo bbp bbt bbu bnb bnn bno bnp bnt bnu bob bon boo bop bot bou bpb bpn bpo bpp bpt bpu btb btn bto btp btt btu bub bun buo bup but buu nbb nbn nbo nbp nbt nbu nnb nnn nno nnp nnt nnu no- nob non noo nop not nou npb npn npo npp npt npu ntb ntn nto ntp ntt ntu nub nun nuo nup nut nuu ob- obb obn obo obp obt obu on- onb onn ono onp ont onu oo- oob oon ooo oop oot op- opb opn opo opp opt ot- otb otn oto otp ott otu ou- oun ouo oup out p-p pbb pbn pbo pbp pbt pbu pn- pnb pnn pno pnp pnt pnu pob pon poo pop pot pou ppb ppn ppo ppp ppt ppu pt- ptb ptn pto ptp ptt ptu pub pun pup put puu tbb tbn tbo tbp tbt tbu tnb tnn tno tnp tnt to- tob ton too top tot tou tpb tpn tpo tpp tpt tpu ttb ttn tto ttp ttt ttu tub tun tuo tup tut tuu ubb ubn ubo ubp ubt ubu un- unb unn uno unp unt unu uob uon uoo uop uot up- upb upn upo upp upt upu utb utn uto utp utt utu uun uut uuu