-up b-p b-u bbb bbi bbn bbp bbr bbt bbu bi- bib bii bin bip bir bit biu bnb bni bnn bnp bnr bnt bnu bpb bpi bpn bpp bpr bpt bpu brb bri brn brp brr brt bru btb bti btn btp btr btt btu bub bui bun bup bur but buu ibb ibi ibn ibp ibr ibt ibu iib iii iin iip iir iit iiu in- inb ini inn inp inr int inu ipb ipi ipn ipp ipr ipt ipu ir- irb iri irn irp irr irt iru itb iti itn itp itt itu iu- iub iui iup iur iut n-i nbb nbi nbn nbp nbr nbt nbu nib nii nin nip nir nit niu nnb nni nnn nnp nnt nnu npb npi npn npp npr npt npu nrb nri nrn nrp nrr nrt nru ntb nti ntn ntp ntr ntt ntu nub nui nun nup nur nut nuu p-p pbb pbi pbn pbp pbr pbt pbu pib pii pin pip pir pit piu pn- pnb pni pnn pnp pnr pnt pnu ppb ppi ppn ppp ppr ppt ppu prb pri prn prp prr prt pru pt- ptb pti ptn ptp ptr ptt ptu pub pui pun pup pur put puu rbb rbi rbn rbp rbr rbt rbu rib rii rin rip rir rit rnb rni rnn rnp rnr rnt rnu rpb rpi rpn rpp rpr rpt rpu rrb rri rrn rrp rrr rrt rru rtb rti rtn rtp rtr rtt rtu rub rui run rup rur rut ruu tbb tbi tbn tbp tbr tbt tbu tib tii tin tip tir tit tiu tnb tni tnn tnp tnr tnt tpb tpi tpn tpp tpr tpt tpu trb tri trn trp trr trt tru ttb tti ttn ttp ttr ttt ttu tub tui tun tup tur tut tuu ubb ubi ubn ubp ubr ubt ubu uib uii uin uip uir uit uiu un- unb uni unn unp unr unt unu up- upb upi upn upp upr upt upu ur- urb uri urn urp urr urt uru utb uti utn utp utr utt utu uun uur uut uuu