-up ddd ddi ddn ddp dds ddt ddu di- did dii din dip dis dit diu dnd dni dnn dnp dns dnt dpd dpi dpn dpp dps dpt dpu dsd dsi dsn dsp dss dst dsu dtd dti dtn dtp dts dtt dtu dud dui dun dup dus dut i-d idd idi idn idp ids idt idu iid iii iin iip iis iit iiu in- ind ini inn inp ins int inu ipd ipi ipn ipp ips ipt ipu is- isd isi isn isp iss ist isu itd iti itn itp its itt itu iu- iud iui iup ius iut n-i ndd ndi ndn ndp nds ndt ndu nid nii nin nip nis nit niu nni nnn nnp nns nnt nnu npd npi npn npp nps npt npu nsd nsi nsn nsp nss nst nsu ntd nti ntn ntp nts ntt ntu nud nui nun nup nus nut nuu p-p pdd pdi pdn pdp pds pdt pdu pid pii pin pip pis pit piu pn- pnd pni pnn pnp pns pnt pnu ppd ppi ppn ppp pps ppt ppu ps- psd psi psn psp pss pst psu pt- ptd pti ptn ptp pts ptt ptu pud pui pun pup pus put puu sdd sdi sdn sdp sds sdt sdu sid sii sin sip sis sit siu snd sni snn snp sns snt snu spd spi spn spp sps spt spu ss- ssd ssi ssn ssp sss sst ssu std sti stn stp sts stt stu sud sui sun sup sus sut suu tdd tdi tdn tdp tds tdt tdu tid tii tin tip tis tit tiu tnd tni tnn tnp tns tnt tpd tpi tpn tpp tps tpt tpu tsd tsi tsn tsp tss tst tsu ttd tti ttn ttp tts ttt ttu tud tui tun tup tus tut tuu udd udi udn udp uds udt udu uid uii uin uip uis uit uiu un- und uni unn unp uns unt unu up- upd upi upn upp ups upt upu usd usi usn usp uss ust usu utd uti utn utp uts utt utu uun uus uut uuu