-er -up ddd dde ddi ddn ddp ddq ddr ddu de- ded dee dei den dep deq der deu di- did die dii din dip diq dir diu dnd dne dni dnn dnp dnq dnr dpd dpe dpi dpn dpp dpr dpu dqe dqn drd dre dri drn drp drq drr dru dud due dui dun dup dur ed- edd ede edi edn edp edr edu eed eee een eep eer eid eie eii ein eip eir eiu en- end ene eni enn enp enr enu ep- epd epe epi epn epp epq epr epu eqe eqn eqp eqq equ erd ere eri ern erp erq err eru eu- eud eue eui eun eup eur i-d idd ide idi idn idp idq idr idu ie- ied iee iei ien iep ier iid iie iii iin iip iir iiu in- ind ine ini inn inp inq inr inu ipd ipe ipi ipn ipp ipr ipu iqd iqe iqu ir- ird ire iri irn irp irq irr iru iu- iud iue iui iup iur n-i ndd nde ndi ndn ndp ndr ndu ne- ned nee nei nen nep ner neu nid nie nii nin nip niq nir niu nne nni nnn nnp nnu npd npe npi npn npp npr npu nrd nre nri nrn nrp nrr nru nud nue nui nun nup nuq nur nuu p-p pdd pde pdi pdn pdp pdq pdr pdu ped pee pei pen pep per peu pid pie pii pin pip piq pir piu pn- pnd pne pni pnn pnp pnr pnu ppd ppe ppi ppn ppp ppq ppr ppu pqi pqq pqr prd pre pri prn prp prq prr pru pud pue pui pun pup pur puu qdr qed qee qen qep qid qie qin qip qir qiu qnd qne qni qpp qpr qqq qqu qre qri qrp qru qu- qud que qui qur rdd rde rdi rdn rdp rdr rdu re- red ree rei ren rep req rer reu rid rie rii rin rip riq rir rnd rni rnn rnp rnr rnu rpd rpe rpi rpn rpp rpr rpu rqn rrd rri rrn rrp rrq rrr rru rud rue rui run rup rur ruu udd ude udi udn udp udr udu ued uee uei uen uep uer uid uie uii uin uip uiq uir uiu un- und une uni unn unp unq unr unu up- upd upe upi upn upp upr upu ur- urd ure uri urn urp urr uru uue uun uur uuu