-up b-p b-u bbb bbk bbn bbo bbp bbt bbu bkb bkk bkn bko bkp bkt bnb bnk bnn bno bnp bnt bnu bob bok bon boo bop bot bou bpb bpn bpo bpp bpt bpu btb btk btn bto btp btt btu bub buk bun buo bup but buu k-t kbb kbk kbn kbo kbp kbu kkb kkk kkn kkp kkt kku kn- knk knn kno knp knt knu kob kok kon koo kop kot kou kpk kpn kpo kpp kpt kpu ktb ktk ktn kto ktp ktt ktu kub kuk kun kup kut kuu nbb nbk nbn nbo nbp nbt nbu nkk nkn nko nkp nkt nku nnb nnk nnn nno nnp nnt nnu no- nob nok non noo nop not nou npb npn npo npp npt npu ntb ntk ntn nto ntp ntt ntu nub nuk nun nuo nup nut nuu ob- obb obk obn obo obp obt obu okb okk oko okp oku on- onb onk onn ono onp ont onu oo- oob ook oon ooo oop oot op- opb opk opn opo opp opt ot- otb otk otn oto otp ott otu ou- ouk oun ouo oup out p-p pbb pbk pbn pbo pbp pbt pbu pkb pkn pko pkp pkt pku pn- pnb pnk pnn pno pnp pnt pnu pob pok pon poo pop pot pou ppb ppk ppn ppo ppp ppt ppu pt- ptb ptk ptn pto ptp ptt ptu pub puk pun pup put puu tbb tbk tbn tbo tbp tbt tbu tkb tkk tko tkp tkt tnb tnk tnn tno tnp tnt to- tob tok ton too top tot tou tpb tpk tpn tpo tpp tpt tpu ttb ttk ttn tto ttp ttt ttu tub tuk tun tuo tup tut tuu ubb ubk ubn ubo ubp ubt ubu ukb ukk ukn ukp uku un- unb unk unn uno unp unt unu uob uok uon uoo uop uot up- upb upk upn upo upp upt upu utb utk utn uto utp utt utu uun uut uuu