-up b-p b-u bbb bbe bbi bbn bbo bbp bbs bbt bbu be- beb bee bei ben beo bep bes bet beu bi- bib bie bii bin bio bip bis bit biu bnb bne bni bnn bno bnp bns bnt bnu bob boe boi bon boo bop bos bot bou bpb bpe bpi bpn bpo bpp bps bpt bpu bsb bse bsi bsn bso bsp bss bst bsu btb bte bti btn bto btp bts btt btu bub bue bui bun buo bup bus but buu ebb ebe ebi ebn ebo ebp ebs ebt ebu eeb eee een eeo eep ees eet eib eie eii ein eio eip eis eit eiu en- enb ene eni enn eno enp ens ent enu eo- eob eoe eoi eon eoo eop eos eot eou ep- epb epe epi epn epo epp eps ept epu es- esb ese esi esn eso esp ess est esu etb ete eti etn eto etp ets ett etu eu- eub eue eui eun eup eus eut ibb ibe ibi ibn ibo ibp ibs ibt ibu ie- iee iei ien iep ies iet iib iie iii iin iio iip iis iit iiu in- inb ine ini inn ino inp ins int inu io- iob ioe ioi ion ioo iop ios iot iou ipb ipe ipi ipn ipo ipp ips ipt ipu is- isb ise isi isn iso isp iss ist isu itb ite iti itn ito itp its itt itu iu- iub iue iui iup ius iut n-i nbb nbe nbi nbn nbo nbp nbs nbt nbu ne- neb nee nei nen neo nep nes net neu nib nie nii nin nio nip nis nit niu nnb nne nni nnn nno nnp nns nnt nnu no- nob noe noi non noo nop nos not nou npb npe npi npn npo npp nps npt npu nsb nse nsi nsn nso nsp nss nst nsu ntb nte nti ntn nto ntp nts ntt ntu nub nue nui nun nuo nup nus nut nuu o-i ob- obb obe obi obn obo obp obs obt obu oeb oee oei oen oeo oep oes oet oib oie oii oin oio oip ois oit oiu on- onb one oni onn ono onp ons ont onu oo- oob ooi oon ooo oop oos oot op- opb ope opi opn opo opp ops opt os- osb ose osi osn oso osp oss ost osu ot- otb ote oti otn oto otp ots ott otu ou- oue oui oun ouo oup ous out p-p pbb pbe pbi pbn pbo pbp pbs pbt pbu peb pee pei pen peo pep pes pet peu pib pie pii pin pio pip pis pit piu pn- pnb pne pni pnn pno pnp pns pnt pnu pob poe poi pon poo pop pos pot pou ppb ppe ppi ppn ppo ppp pps ppt ppu ps- psb pse psi psn pso psp pss pst psu pt- ptb pte pti ptn pto ptp pts ptt ptu pub pue pui pun pup pus put puu sbb sbe sbi sbn sbo sbp sbs sbt sbu se- seb see sei sen seo sep ses set seu sib sie sii sin sio sip sis sit siu snb sne sni snn sno snp sns snt snu sob soe soi son soo sop sos sot sou spb spe spi spn spo spp sps spt spu ss- ssb sse ssi ssn sso ssp sss sst ssu stb ste sti stn sto stp sts stt stu sub sue sui sun suo sup sus sut suu tbb tbe tbi tbn tbo tbp tbs tbt tbu te- teb tee tei ten teo tep tes tet teu tib tie tii tin tio tip tis tit tiu tnb tne tni tnn tno tnp tns tnt to- tob toe toi ton too top tos tot tou tpb tpe tpi tpn tpo tpp tps tpt tpu tsb tse tsi tsn tso tsp tss tst tsu ttb tte tti ttn tto ttp tts ttt ttu tub tue tui tun tuo tup tus tut tuu ubb ube ubi ubn ubo ubp ubs ubt ubu ueb uee uei uen uep ues uet uib uie uii uin uio uip uis uit uiu un- unb une uni unn uno unp uns unt unu uob uoe uon uoo uop uos uot up- upb upe upi upn upo upp ups upt upu usb use usi usn uso usp uss ust usu utb ute uti utn uto utp uts utt utu uue uun uus uut uuu