-er ddd dde ddf ddi ddn ddo ddp ddr dds ddt de- ded dee def dei den deo dep der des det dfd dfe dff dfi dfn dfo dfp dfr dfs dft di- did die dif dii din dio dip dir dis dit dnd dne dnf dni dnn dno dnp dnr dns dnt dod doe dof doi don doo dop dor dos dot dpd dpe dpf dpi dpn dpo dpp dpr dps dpt drd dre dri drn dro drp drr drs drt dsd dse dsf dsi dsn dso dsp dsr dss dst dtd dte dtf dti dtn dto dtp dtr dts dtt ed- edd ede edf edi edn edo edp edr eds edt eed eee eef een eeo eep eer ees eet ef- efd efe eff efi efo efp efr efs eft eid eie eif eii ein eio eip eir eis eit en- end ene enf eni enn eno enp enr ens ent eo- eod eoe eof eoi eon eoo eop eor eos eot ep- epd epe epf epi epn epo epp epr eps ept erd ere erf eri ern ero erp err ers ert es- esd ese esf esi esn eso esp esr ess est etd ete etf eti etn eto etp etr ets ett fdd fde fdf fdi fdn fdo fdp fdr fds fdt fed fee fef fei fen feo fep fer fes fet ffd ffe fff ffi ffn ffo ffp ffr ffs fft fid fie fif fii fin fip fir fis fit fnd fne fnf fni fnn fnp fnr fns fnt foe fof foi fon foo fop for fos fot fpd fpe fpi fpn fpo fpp fpr fps fpt frd fre frf fri frn fro frp frr frs frt fsd fse fsf fsi fsn fso fsp fsr fss fst ftd fte ftf fti ftn fto ftp ftr fts ftt i-d i-f idd ide idf idi idn ido idp idr ids idt ie- ied iee ief iei ien iep ier ies iet ifd ife iff ifi ifn ifo ifp ifr ifs ift iid iie iif iii iin iio iip iir iis iit in- ind ine inf ini inn ino inp inr ins int io- iod ioe iof ioi ion ioo iop ior ios iot ipd ipe ipf ipi ipn ipo ipp ipr ips ipt ir- ird ire irf iri irn iro irp irr irs irt is- isd ise isf isi isn iso isp isr iss ist itd ite itf iti itn ito itp its itt n-i ndd nde ndf ndi ndn ndo ndp ndr nds ndt ne- ned nee nef nei nen neo nep ner nes net nfd nfe nff nfi nfn nfo nfp nfr nfs nft nid nie nif nii nin nio nip nir nis nit nne nnf nni nnn nno nnp nns nnt no- nod noe nof noi non noo nop nor nos not npd npe npf npi npn npo npp npr nps npt nrd nre nrf nri nrn nro nrp nrr nrs nrt nsd nse nsf nsi nsn nso nsp nsr nss nst ntd nte ntf nti ntn nto ntp ntr nts ntt o-i odd ode odf odi odn odo odp odr ods odt oed oee oef oei oen oeo oep oer oes oet of- ofd ofe off ofi ofn ofo ofp ofr ofs oft oid oie oif oii oin oio oip oir ois oit on- ond one onf oni onn ono onp onr ons ont oo- ood oof ooi oon ooo oop oor oos oot op- opd ope opf opi opn opo opp opr ops opt or- ord ore orf ori orn oro orp orr ors ort os- osd ose osf osi osn oso osp osr oss ost ot- otd ote otf oti otn oto otp otr ots ott p-p pdd pde pdf pdi pdn pdo pdp pdr pds pdt ped pee pef pei pen peo pep per pes pet pfd pfe pff pfi pfn pfo pfp pfr pfs pft pid pie pif pii pin pio pip pir pis pit pn- pnd pne pnf pni pnn pno pnp pnr pns pnt pod poe pof poi pon poo pop por pos pot ppd ppe ppf ppi ppn ppo ppp ppr pps ppt prd pre prf pri prn pro prp prr prs prt ps- psd pse psf psi psn pso psp psr pss pst pt- ptd pte ptf pti ptn pto ptp ptr pts ptt rdd rde rdf rdi rdn rdo rdp rdr rds rdt re- red ree ref rei ren reo rep rer res ret rfd rfe rff rfi rfn rfo rfp rfr rfs rft rid rie rif rii rin rio rip rir ris rit rnd rni rnn rno rnp rnr rns rnt rod roe rof roi ron roo rop ror ros rot rpd rpe rpf rpi rpn rpo rpp rpr rps rpt rrd rrf rri rrn rrp rrr rrs rrt rsd rse rsf rsi rsn rso rsp rsr rss rst rtd rte rtf rti rtn rto rtp rtr rts rtt sdd sde sdf sdi sdn sdo sdp sdr sds sdt se- sed see sef sei sen seo sep ser ses set sfd sfe sff sfi sfn sfo sfp sfr sfs sft sid sie sif sii sin sio sip sir sis sit snd sne snf sni snn sno snp snr sns snt sod soe sof soi son soo sop sor sos sot spd spe spf spi spn spo spp spr sps spt sr- srd sre srf sri srn sro srp srr srs srt ss- ssd sse ssf ssi ssn sso ssp ssr sss sst std ste stf sti stn sto stp str sts stt tdd tde tdf tdi tdn tdo tdp tdr tds tdt te- ted tee tef tei ten teo tep ter tes tet tfd tfe tff tfi tfn tfo tfp tfr tfs tft tid tie tif tii tin tio tip tir tis tit tnd tne tnf tni tnn tno tnp tnr tns tnt to- tod toe tof toi ton too top tor tos tot tpd tpe tpf tpi tpn tpo tpp tpr tps tpt trd tre trf tri trn tro trp trr trs