-up b-p b-u bbb bbd bbi bbn bbp bbs bbu bdb bdd bdi bdp bds bdu bi- bib bid bii bin bip bis biu bnb bnd bni bnn bnp bns bnu bpb bpd bpi bpn bpp bps bpu bsb bsd bsi bsn bsp bss bsu bub bud bui bun bup bus buu dbb dbd dbi dbn dbp dbs dbu ddb ddd ddi ddn ddp dds ddu di- dib did dii din dip dis diu dnb dnd dni dnn dnp dns dpb dpd dpi dpn dpp dps dpu dsb dsd dsi dsn dsp dss dsu dub dud dui dun dup dus i-d ibb ibd ibi ibn ibp ibs ibu idb idd idi idn idp ids idu iib iid iii iin iip iis iiu in- inb ind ini inn inp ins inu ipb ipd ipi ipn ipp ips ipu is- isb isd isi isn isp iss isu iu- iub iud iui iup ius n-i nbb nbd nbi nbn nbp nbs nbu ndb ndd ndi ndn ndp nds ndu nib nid nii nin nip nis niu nnb nni nnn nnp nns nnu npb npd npi npn npp nps npu nsb nsd nsi nsn nsp nss nsu nub nud nui nun nup nus nuu p-p pbb pbd pbi pbn pbp pbs pbu pdb pdd pdi pdn pdp pds pdu pib pid pii pin pip pis piu pn- pnb pnd pni pnn pnp pns pnu ppb ppd ppi ppn ppp pps ppu ps- psb psd psi psn psp pss psu pub pud pui pun pup pus puu sbb sbd sbi sbn sbp sbs sbu sdb sdd sdi sdn sdp sds sdu sib sid sii sin sip sis siu snb snd sni snn snp sns snu spb spd spi spn spp sps spu ss- ssb ssd ssi ssn ssp sss ssu sub sud sui sun sup sus suu ubb ubi ubn ubp ubs ubu udb udd udi udn udp uds udu uib uid uii uin uip uis uiu un- unb und uni unn unp uns unu up- upb upd upi upn upp ups upu usb usd usi usn usp uss usu uun uus uuu