-up ddd dde ddn ddo ddp dds ddt ddu de- ded dee den deo dep des det deu dnd dne dnn dno dnp dns dnt dod doe don doo dop dos dot dou dpd dpe dpn dpo dpp dps dpt dpu dsd dse dsn dso dsp dss dst dsu dtd dte dtn dto dtp dts dtt dtu dud due dun duo dup dus dut ed- edd ede edn edo edp eds edt edu eed eee een eeo eep ees eet en- end ene enn eno enp ens ent enu eo- eod eoe eon eoo eop eos eot eou ep- epd epe epn epo epp eps ept epu es- esd ese esn eso esp ess est esu etd ete etn eto etp ets ett etu eu- eud eue eun eup eus eut ndd nde ndn ndo ndp nds ndt ndu ne- ned nee nen neo nep nes net neu nne nnn nno nnp nns nnt nnu no- nod noe non noo nop nos not nou npd npe npn npo npp nps npt npu nsd nse nsn nso nsp nss nst nsu ntd nte ntn nto ntp nts ntt ntu nud nue nun nuo nup nus nut nuu odd ode odn odo odp ods odt odu oed oee oen oeo oep oes oet on- ond one onn ono onp ons ont onu oo- ood oon ooo oop oos oot op- opd ope opn opo opp ops opt os- osd ose osn oso osp oss ost osu ot- otd ote otn oto otp ots ott otu ou- oud oue oun ouo oup ous out p-p pdd pde pdn pdo pdp pds pdt pdu ped pee pen peo pep pes pet peu pn- pnd pne pnn pno pnp pns pnt pnu pod poe pon poo pop pos pot pou ppd ppe ppn ppo ppp pps ppt ppu ps- psd pse psn pso psp pss pst psu pt- ptd pte ptn pto ptp pts ptt ptu pud pue pun pup pus put puu sdd sde sdn sdo sdp sds sdt sdu se- sed see sen seo sep ses set seu snd sne snn sno snp sns snt snu sod soe son soo sop sos sot sou spd spe spn spo spp sps spt spu ss- ssd sse ssn sso ssp sss sst ssu std ste stn sto stp sts stt stu sud sue sun suo sup sus sut suu tdd tde tdn tdo tdp tds tdt tdu te- ted tee ten teo tep tes tet teu tnd tne tnn tno tnp tns tnt to- tod toe ton too top tos tot tou tpd tpe tpn tpo tpp tps tpt tpu tsd tse tsn tso tsp tss tst tsu ttd tte ttn tto ttp tts ttt ttu tud tue tun tuo tup tus tut tuu udd ude udn udo udp uds udt udu ued uee uen uep ues uet un- und une unn uno unp uns unt unu uod uoe uon uoo uop uos uot up- upd upe upn upo upp ups upt upu usd use usn uso usp uss ust usu utd ute utn uto utp uts utt utu uue uun uus uut uuu