-up ddd dde ddn ddo ddp ddu de- ded dee den deo dep deu dnd dne dnn dno dnp dod doe don doo dop dou dpd dpe dpn dpo dpp dpu dud due dun duo dup ed- edd ede edn edo edp edu eed eee een eeo eep en- end ene enn eno enp enu eo- eod eoe eon eoo eop eou ep- epd epe epn epo epp epu eu- eud eue eun eup ndd nde ndn ndo ndp ndu ne- ned nee nen neo nep neu nne nnn nno nnp nnu no- nod noe non noo nop nou npd npe npn npo npp npu nud nue nun nuo nup nuu odd ode odn odo odp odu oed oee oen oeo oep on- ond one onn ono onp onu oo- ood oon ooo oop op- opd ope opn opo opp ou- oud oue oun ouo oup p-p pdd pde pdn pdo pdp pdu ped pee pen peo pep peu pn- pnd pne pnn pno pnp pnu pod poe pon poo pop pou ppd ppe ppn ppo ppp ppu pud pue pun pup puu udd ude udn udo udp udu ued uee uen uep un- und une unn uno unp unu uod uoe uon uoo uop up- upd upe upn upo upp upu uue uun uuu