-up ddd dde ddo ddp dds ddt ddu de- ded dee deo dep des det deu dod doe doo dop dos dot dou dpd dpe dpo dpp dps dpt dpu dsd dse dso dsp dss dst dsu dtd dte dto dtp dts dtt dtu dud due duo dup dus dut ed- edd ede edo edp eds edt edu eed eee eeo eep ees eet eo- eod eoe eoo eop eos eot eou ep- epd epe epo epp eps ept epu es- esd ese eso esp ess est esu etd ete eto etp ets ett etu eu- eud eue eup eus eut odd ode odo odp ods odt odu oed oee oeo oep oes oet oo- ood ooo oop oos oot op- opd ope opo opp ops opt os- osd ose oso osp oss ost osu ot- otd ote oto otp ots ott otu ou- oud oue ouo oup ous out p-p pdd pde pdo pdp pds pdt pdu ped pee peo pep pes pet peu pod poe poo pop pos pot pou ppd ppe ppo ppp pps ppt ppu ps- psd pse pso psp pss pst psu pt- ptd pte pto ptp pts ptt ptu pud pue pup pus put puu sdd sde sdo sdp sds sdt sdu se- sed see seo sep ses set seu sod soe soo sop sos sot sou spd spe spo spp sps spt spu ss- ssd sse sso ssp sss sst ssu std ste sto stp sts stt stu sud sue suo sup sus sut suu tdd tde tdo tdp tds tdt tdu te- ted tee teo tep tes tet teu to- tod toe too top tos tot tou tpd tpe tpo tpp tps tpt tpu tsd tse tso tsp tss tst tsu ttd tte tto ttp tts ttt ttu tud tue tuo tup tus tut tuu udd ude udo udp uds udt udu ued uee uep ues uet uod uoe uoo uop uos uot up- upd upe upo upp ups upt upu usd use uso usp uss ust usu utd ute uto utp uts utt utu uue uus uut uuu