-up b-p b-u bbb bbi bbn bbp bbr bbs bbt bbu bi- bib bii bin bip bir bis bit biu bnb bni bnn bnp bnr bns bnt bnu bpb bpi bpn bpp bpr bps bpt bpu brb bri brn brp brr brs brt bru bsb bsi bsn bsp bsr bss bst bsu btb bti btn btp btr bts btt btu bub bui bun bup bur bus but buu ibb ibi ibn ibp ibr ibs ibt ibu iib iii iin iip iir iis iit iiu in- inb ini inn inp inr ins int inu ipb ipi ipn ipp ipr ips ipt ipu ir- irb iri irn irp irr irs irt iru is- isb isi isn isp isr iss ist isu itb iti itn itp its itt itu iu- iub iui iup iur ius iut n-i nbb nbi nbn nbp nbr nbs nbt nbu nib nii nin nip nir nis nit niu nnb nni nnn nnp nns nnt nnu npb npi npn npp npr nps npt npu nrb nri nrn nrp nrr nrs nrt nru nsb nsi nsn nsp nsr nss nst nsu ntb nti ntn ntp ntr nts ntt ntu nub nui nun nup nur nus nut nuu p-p pbb pbi pbn pbp pbr pbs pbt pbu pib pii pin pip pir pis pit piu pn- pnb pni pnn pnp pnr pns pnt pnu ppb ppi ppn ppp ppr pps ppt ppu prb pri prn prp prr prs prt pru ps- psb psi psn psp psr pss pst psu pt- ptb pti ptn ptp ptr pts ptt ptu pub pui pun pup pur pus put puu rbb rbi rbn rbp rbr rbs rbt rbu rib rii rin rip rir ris rit rnb rni rnn rnp rnr rns rnt rnu rpb rpi rpn rpp rpr rps rpt rpu rrb rri rrn rrp rrr rrs rrt rru rsb rsi rsn rsp rsr rss rst rsu rtb rti rtn rtp rtr rts rtt rtu rub rui run rup rur rus rut ruu sbb sbi sbn sbp sbr sbs sbt sbu sib sii sin sip sir sis sit siu snb sni snn snp snr sns snt snu spb spi spn spp spr sps spt spu sr- srb sri srn srp srr srs srt ss- ssb ssi ssn ssp ssr sss sst ssu stb sti stn stp str sts stt stu sub sui sun sup sur sus sut suu tbb tbi tbn tbp tbr tbs tbt tbu tib tii tin tip tir tis tit tiu tnb tni tnn tnp tnr tns tnt tpb tpi tpn tpp tpr tps tpt tpu trb tri trn trp trr trs trt tru tsb tsi tsn tsp tsr tss tst tsu ttb tti ttn ttp ttr tts ttt ttu tub tui tun tup tur tus tut tuu ubb ubi ubn ubp ubr ubs ubt ubu uib uii uin uip uir uis uit uiu un- unb uni unn unp unr uns unt unu up- upb upi upn upp upr ups upt upu ur- urb uri urn urp urr urs urt uru usb usi usn usp usr uss ust usu utb uti utn utp utr uts utt utu uun uur uus uut uuu