-up b-p b-u bbb bbe bbn bbo bbp bbs bbu be- beb bee ben beo bep bes beu bnb bne bnn bno bnp bns bnu bob boe bon boo bop bos bou bpb bpe bpn bpo bpp bps bpu bsb bse bsn bso bsp bss bsu bub bue bun buo bup bus buu ebb ebe ebn ebo ebp ebs ebu eeb eee een eeo eep ees en- enb ene enn eno enp ens enu eo- eob eoe eon eoo eop eos eou ep- epb epe epn epo epp eps epu es- esb ese esn eso esp ess esu eu- eub eue eun eup eus nbb nbe nbn nbo nbp nbs nbu ne- neb nee nen neo nep nes neu nnb nne nnn nno nnp nns nnu no- nob noe non noo nop nos nou npb npe npn npo npp nps npu nsb nse nsn nso nsp nss nsu nub nue nun nuo nup nus nuu ob- obb obe obn obo obp obs obu oeb oee oen oeo oep oes on- onb one onn ono onp ons onu oo- oob oon ooo oop oos op- opb ope opn opo opp ops os- osb ose osn oso osp oss osu ou- oue oun ouo oup ous p-p pbb pbe pbn pbo pbp pbs pbu peb pee pen peo pep pes peu pn- pnb pne pnn pno pnp pns pnu pob poe pon poo pop pos pou ppb ppe ppn ppo ppp pps ppu ps- psb pse psn pso psp pss psu pub pue pun pup pus puu sbb sbe sbn sbo sbp sbs sbu se- seb see sen seo sep ses seu snb sne snn sno snp sns snu sob soe son soo sop sos sou spb spe spn spo spp sps spu ss- ssb sse ssn sso ssp sss ssu sub sue sun suo sup sus suu ubb ube ubn ubo ubp ubs ubu ueb uee uen uep ues un- unb une unn uno unp uns unu uob uoe uon uoo uop uos up- upb upe upn upo upp ups upu usb use usn uso usp uss usu uue uun uus uuu