-er ddd dde ddi ddm ddn ddp ddr dds de- ded dee dei dem den dep der des di- did die dii dim din dip dir dis dmd dme dmi dmm dmn dmp dmr dms dnd dne dni dnm dnn dnp dnr dns dpd dpe dpi dpm dpn dpp dpr dps drd dre dri drm drn drp drr drs dsd dse dsi dsm dsn dsp dsr dss ed- edd ede edi edm edn edp edr eds eed eee eem een eep eer ees eid eie eii eim ein eip eir eis em- emd eme emi emm emn emp emr ems en- end ene eni enm enn enp enr ens ep- epd epe epi epm epn epp epr eps erd ere eri erm ern erp err ers es- esd ese esi esm esn esp esr ess i-d idd ide idi idm idn idp idr ids ie- ied iee iei iem ien iep ier ies iid iie iii iim iin iip iir iis im- imd ime imi imm imn imp ims in- ind ine ini inm inn inp inr ins ipd ipe ipi ipm ipn ipp ipr ips ir- ird ire iri irm irn irp irr irs is- isd ise isi ism isn isp isr iss m-r mdd mde mdi mdm mdn mdp mdr mds med mee mei mem men mep mer mes mi- mid mie mii mim min mip mir mis mmd mme mmi mmm mmn mmp mmr mms mne mni mnm mnn mnp mnr mns mpd mpe mpi mpm mpn mpp mpr mps mrd mre mri mrm mrn mrp mrr mrs msd mse msi msm msn msp msr mss n-i ndd nde ndi ndm ndn ndp ndr nds ne- ned nee nei nem nen nep ner nes nid nie nii nim nin nip nir nis nmd nme nmi nmm nmn nmp nmr nms nne nni nnm nnn nnp nns npd npe npi npm npn npp npr nps nrd nre nri nrm nrn nrp nrr nrs nsd nse nsi nsm nsn nsp nsr nss p-p pdd pde pdi pdm pdn pdp pdr pds ped pee pei pem pen pep per pes pid pie pii pim pin pip pir pis pmd pme pmi pmm pmn pmp pmr pms pn- pnd pne pni pnm pnn pnp pnr pns ppd ppe ppi ppm ppn ppp ppr pps prd pre pri prm prn prp prr prs ps- psd pse psi psm psn psp psr pss rdd rde rdi rdm rdn rdp rdr rds re- red ree rei rem ren rep rer res rid rie rii rim rin rip rir ris rmd rme rmi rmm rmn rmp rmr rms rnd rni rnm rnn rnp rnr rns rpd rpe rpi rpm rpn rpp rpr rps rrd rri rrm rrn rrp rrr rrs rsd rse rsi rsm rsn rsp rsr rss sdd sde sdi sdm sdn sdp sdr sds se- sed see sei sem sen sep ser ses sid sie sii sim sin sip sir sis smd sme smi smm smn smp smr sms snd sne sni snm snn snp snr sns spd spe spi spm spn spp spr sps sr- srd sre sri srm srn srp srr srs ss- ssd sse ssi ssm ssn ssp ssr sss