-er -ic c-- ccc ccd cce cci ccn ccr ccs ccu ccx cdc cdd cde cdi cdn cdr cds cdu cdx ce- cec ced cee cei cen cer ces ceu cex ci- cic cid cie cii cin cir cis ciu cix cn- cnc cnd cne cni cnn cnr cns cnu cnx crc crd cre cri crn crr crs cru crx csc csd cse csi csn csr css csu csx cuc cud cue cui cun cur cus cuu cxc cxi cxr cxs cxx dcc dcd dce dci dcn dcr dcs dcu dcx ddc ddd dde ddi ddn ddr dds ddu ddx de- dec ded dee dei den der des deu dex di- dic did die dii din dir dis diu dix dnc dnd dne dni dnn dnr dns drc drd dre dri drn drr drs dru drx dsc dsd dse dsi dsn dsr dss dsu dsx duc dud due dui dun dur dus dux dxc dxd dxi dxn dxr dxs dxx ec- ecc ecd ece eci ecn ecr ecs ecu ecx ed- edc edd ede edi edn edr eds edu edx eec eed eee een eer ees eex eic eid eie eii ein eir eis eiu eix en- enc end ene eni enn enr ens enu erc erd ere eri ern err ers eru es- esc esd ese esi esn esr ess esu esx eu- euc eud eue eui eun eur eus eux ex- exc exd exe exi exr exs exu exx i-d icc icd ice ici icn icr ics icu idc idd ide idi idn idr ids idu idx ie- iec ied iee iei ien ier ies iex iic iid iie iii iin iir iis iiu iix in- inc ind ine ini inn inr ins inu inx ir- irc ird ire iri irn irr irs iru irx is- isc isd ise isi isn isr iss isu iu- iuc iud iue iui iur ius ixc ixe ixi ixn n-i ncc ncd nce nci ncn ncr ncs ncu ncx ndc ndd nde ndi ndn ndr nds ndu ne- nec ned nee nei nen ner nes neu nex nic nid nie nii nin nir nis niu nix nnc nne nni nnn nns nnu nrc nrd nre nri nrn nrr nrs nru nrx nsc nsd nse nsi nsn nsr nss nsu nsx nuc nud nue nui nun nur nus nuu nux nxc nxd rcc rcd rce rci rcn rcr rcs rcu rcx rdc rdd rde rdi rdn rdr rds rdu rdx re- rec red ree rei ren rer res reu rex ric rid rie rii rin rir ris rix rnc rnd rni rnn rnr rns rnu rrc rrd rri rrn rrr rrs rru rsc rsd rse rsi rsn rsr rss rsu rsx ruc rud rue rui run rur rus ruu rux rxr rxs scc scd sce sci scn scr scs scu scx sdc sdd sde sdi sdn sdr sds sdu se- sec sed see sei sen ser ses seu sex sic sid sie sii sin sir sis siu six snc snd sne sni snn snr sns snu sr- src srd sre sri srn srr srs srx ss- ssc ssd sse ssi ssn ssr sss ssu ssx suc sud sue sui sun sur sus suu sux sxc sxi sxn sxs sxu ucc ucd uce uci ucn ucr ucs ucu udc udd ude udi udn udr uds udu udx uec ued uee uei uen uer ues uic uid uie uii uin uir uis uiu un- unc und une uni unn unr uns unu unx ur- urc urd ure uri urn urr urs uru urx usc usd use usi usn usr uss usu usx uuc uue uun uur uus uuu uxc uxr uxu xcd xci xcr xcx xdc xde xdi xdr xds xed xee xen xer xes xeu xex xic xie xii xin xis xiu xix xnc xns xnu xrc xrd xrx xsc xsi xss xue xui xun xus xxi xxx