-up b-p b-u bbb bbi bbn bbp bbu bby bi- bib bii bin bip biu biy bnb bni bnn bnp bnu bpb bpi bpn bpp bpu bpy bub bui bun bup buu buy by- byi byn byp byu ibb ibi ibn ibp ibu iby iib iii iin iip iiu in- inb ini inn inp inu iny ipb ipi ipn ipp ipu ipy iu- iub iui iup iyy n-i nbb nbi nbn nbp nbu nib nii nin nip niu nnb nni nnn nnp nnu npb npi npn npp npu nub nui nun nup nuu nuy nyn nyp nyu nyy p-p pbb pbi pbn pbp pbu pby pib pii pin pip piu pn- pnb pni pnn pnp pnu pny ppb ppi ppn ppp ppu pub pui pun pup puu puy py- pyb pyn pyu ubb ubi ubn ubp ubu uby uib uii uin uip uiu un- unb uni unn unp unu uny up- upb upi upn upp upu uun uuu uyi uyu ybi ybp yby yii yin yip ynn ynp ynu yny ypu yui yun yup yuu yuy yyb yyu yyy