-up b-p b-u bbb bbd bbe bbn bbo bbp bbt bbu bdb bdd bde bdo bdp bdt bdu be- beb bed bee ben beo bep bet beu bnb bnd bne bnn bno bnp bnt bnu bob bod boe bon boo bop bot bou bpb bpd bpe bpn bpo bpp bpt bpu btb btd bte btn bto btp btt btu bub bud bue bun buo bup but buu dbb dbd dbe dbn dbo dbp dbt dbu ddb ddd dde ddn ddo ddp ddt ddu de- deb ded dee den deo dep det deu dnb dnd dne dnn dno dnp dnt dob dod doe don doo dop dot dou dpb dpd dpe dpn dpo dpp dpt dpu dtb dtd dte dtn dto dtp dtt dtu dub dud due dun duo dup dut ebb ebd ebe ebn ebo ebp ebt ebu ed- edb edd ede edn edo edp edt edu eeb eed eee een eeo eep eet en- enb end ene enn eno enp ent enu eo- eob eod eoe eon eoo eop eot eou ep- epb epd epe epn epo epp ept epu etb etd ete etn eto etp ett etu eu- eub eud eue eun eup eut nbb nbd nbe nbn nbo nbp nbt nbu ndb ndd nde ndn ndo ndp ndt ndu ne- neb ned nee nen neo nep net neu nnb nne nnn nno nnp nnt nnu no- nob nod noe non noo nop not nou npb npd npe npn npo npp npt npu ntb ntd nte ntn nto ntp ntt ntu nub nud nue nun nuo nup nut nuu ob- obb obd obe obn obo obp obt obu odb odd ode odn odo odp odt odu oeb oed oee oen oeo oep oet on- onb ond one onn ono onp ont onu oo- oob ood oon ooo oop oot op- opb opd ope opn opo opp opt ot- otb otd ote otn oto otp ott otu ou- oud oue oun ouo oup out p-p pbb pbd pbe pbn pbo pbp pbt pbu pdb pdd pde pdn pdo pdp pdt pdu peb ped pee pen peo pep pet peu pn- pnb pnd pne pnn pno pnp pnt pnu pob pod poe pon poo pop pot pou ppb ppd ppe ppn ppo ppp ppt ppu pt- ptb ptd pte ptn pto ptp ptt ptu pub pud pue pun pup put puu tbb tbd tbe tbn tbo tbp tbt tbu tdb tdd tde tdn tdo tdp tdt tdu te- teb ted tee ten teo tep tet teu tnb tnd tne tnn tno tnp tnt to- tob tod toe ton too top tot tou tpb tpd tpe tpn tpo tpp tpt tpu ttb ttd tte ttn tto ttp ttt ttu tub tud tue tun tuo tup tut tuu ubb ube ubn ubo ubp ubt ubu udb udd ude udn udo udp udt udu ueb ued uee uen uep uet un- unb und une unn uno unp unt unu uob uod uoe uon uoo uop uot up- upb upd upe upn upo upp upt upu utb utd ute utn uto utp utt utu uue uun uut uuu