-up b-p b-u bbb bbi bbn bbp bbr bbs bbu bi- bib bii bin bip bir bis biu bnb bni bnn bnp bnr bns bnu bpb bpi bpn bpp bpr bps bpu brb bri brn brp brr brs bru bsb bsi bsn bsp bsr bss bsu bub bui bun bup bur bus buu ibb ibi ibn ibp ibr ibs ibu iib iii iin iip iir iis iiu in- inb ini inn inp inr ins inu ipb ipi ipn ipp ipr ips ipu ir- irb iri irn irp irr irs iru is- isb isi isn isp isr iss isu iu- iub iui iup iur ius n-i nbb nbi nbn nbp nbr nbs nbu nib nii nin nip nir nis niu nnb nni nnn nnp nns nnu npb npi npn npp npr nps npu nrb nri nrn nrp nrr nrs nru nsb nsi nsn nsp nsr nss nsu nub nui nun nup nur nus nuu p-p pbb pbi pbn pbp pbr pbs pbu pib pii pin pip pir pis piu pn- pnb pni pnn pnp pnr pns pnu ppb ppi ppn ppp ppr pps ppu prb pri prn prp prr prs pru ps- psb psi psn psp psr pss psu pub pui pun pup pur pus puu rbb rbi rbn rbp rbr rbs rbu rib rii rin rip rir ris rnb rni rnn rnp rnr rns rnu rpb rpi rpn rpp rpr rps rpu rrb rri rrn rrp rrr rrs rru rsb rsi rsn rsp rsr rss rsu rub rui run rup rur rus ruu sbb sbi sbn sbp sbr sbs sbu sib sii sin sip sir sis siu snb sni snn snp snr sns snu spb spi spn spp spr sps spu sr- srb sri srn srp srr srs ss- ssb ssi ssn ssp ssr sss ssu sub sui sun sup sur sus suu ubb ubi ubn ubp ubr ubs ubu uib uii uin uip uir uis uiu un- unb uni unn unp unr uns unu up- upb upi upn upp upr ups upu ur- urb uri urn urp urr urs uru usb usi usn usp usr uss usu uun uur uus uuu