-er ddd dde ddh ddi ddn ddo ddp ddr dds de- ded dee deh dei den deo dep der des dh- dhd dhe dhh dhi dho dhp dhr dhs di- did die dih dii din dio dip dir dis dnd dne dnh dni dnn dno dnp dnr dns dod doe doh doi don doo dop dor dos dpd dpe dph dpi dpn dpo dpp dpr dps drd dre dri drn dro drp drr drs dsd dse dsh dsi dsn dso dsp dsr dss ed- edd ede edh edi edn edo edp edr eds eed eee een eeo eep eer ees ehd ehe ehh ehi ehn eho ehp ehr ehs eid eie eii ein eio eip eir eis en- end ene enh eni enn eno enp enr ens eo- eod eoe eoh eoi eon eoo eop eor eos ep- epd epe eph epi epn epo epp epr eps erd ere erh eri ern ero erp err ers es- esd ese esh esi esn eso esp esr ess h-i hdd hde hdh hdi hdn hdo hdp hdr hds he- hed hee heh hei hen heo hep her hes hhd hhe hhh hhi hhn hho hhp hhr hhs hid hie hih hii hin hio hip hir his hnd hne hnh hnn hno hns hod hoe hoh hoi hon hoo hop hor hos hpd hpe hph hpi hpn hpo hpp hpr hps hr- hrd hre hrh hri hrn hro hrp hrr hrs hsd hse hsh hsi hsn hsp hsr hss i-d idd ide idh idi idn ido idp idr ids ie- ied iee iei ien iep ier ies ihd ihe ihh ihi ihn iho ihp ihr ihs iid iie iih iii iin iio iip iir iis in- ind ine inh ini inn ino inp inr ins io- iod ioe ioh ioi ion ioo iop ior ios ipd ipe ipi ipn ipo ipp ipr ips ir- ird ire iri irn iro irp irr irs is- isd ise ish isi isn iso isp isr iss n-i ndd nde ndh ndi ndn ndo ndp ndr nds ne- ned nee neh nei nen neo nep ner nes nhd nhe nhh nhi nhn nhp nhr nhs nid nie nih nii nin nio nip nir nis nne nnh nni nnn nno nnp nns no- nod noe noh noi non noo nop nor nos npd npe nph npi npn npo npp npr nps nrd nre nri nrn nro nrp nrr nrs nsd nse nsh nsi nsn nso nsp nsr nss o-i odd ode odh odi odn odo odp odr ods oed oee oeh oei oen oeo oep oer oes ohd ohe ohh ohi ohn oho ohp ohr ohs oid oie oii oin oio oip oir ois on- ond one onh oni onn ono onp onr ons oo- ood ooh ooi oon ooo oop oor oos op- opd ope oph opi opn opo opp opr ops or- ord ore orh ori orn oro orp orr ors os- osd ose osh osi osn oso osp osr oss p-p pdd pde pdh pdi pdn pdo pdp pdr pds ped pee peh pei pen peo pep per pes phd phe phi phn pho php phr phs pid pie pih pii pin pio pip pir pis pn- pnd pne pnh pni pnn pno pnp pnr pns pod poe poh poi pon poo pop por pos ppd ppe pph ppi ppn ppo ppp ppr pps prd pre prh pri prn pro prp prr prs ps- psd pse psh psi psn pso psp psr pss rdd rde rdh rdi rdn rdo rdp rdr rds re- red ree reh rei ren reo rep rer res rh- rhd rhe rhh rhi rhn rho rhp rhr rhs rid rie rih rii rin rio rip rir ris rnd rnh rni rnn rno rnp rnr rns rod roe roh roi ron roo rop ror ros rpd rpe rph rpi rpn rpo rpp rpr rps rrd rrh rri rrn rrp rrr rrs rsd rse rsh rsi rsn rso rsp rsr rss sdd sde sdh sdi sdn sdo sdp sdr sds se- sed see seh sei sen seo sep ser ses sh- shd she shh shi shn sho shp shr shs sid sie sih sii sin sio sip sir sis snd sne sni snn sno snp snr sns sod soe soh soi son soo sop sor sos spd spe sph spi spn spo spp spr sps sr- srd sre srh sri srn sro srp srr srs ss- ssd sse ssh ssi ssn sso ssp ssr sss