-er -ic c-- ccc cce cci ccm cco ccr ccs ccu ccx ce- cec cee cei cem ceo cer ces ceu cex ci- cic cie cii cim cio cir cis ciu cix cmc cme cmi cmm cmo cmr cms cmu cmx co- coc coe coi com coo cor cos cou cox crc cre cri crm cro crr crs cru crx csc cse csi csm cso csr css csu csx cuc cue cui cum cuo cur cus cuu cxc cxi cxo cxr cxs cxx ec- ecc ece eci ecm eco ecr ecs ecu ecx eec eee eem eeo eer ees eex eic eie eii eim eio eir eis eiu eix em- emc eme emi emm emo emr ems emu emx eo- eoc eoe eoi eom eoo eor eos eou erc ere eri erm ero err ers eru es- esc ese esi esm eso esr ess esu esx eu- euc eue eui eur eus eux ex- exc exe exi exo exr exs exu exx icc ice ici icm ico icr ics icu ie- iec iee iei iem ier ies iex iic iie iii iim iio iir iis iiu iix im- imc ime imi imm imo ims imu imx io- ioc ioe ioi iom ioo ior ios iou ir- irc ire iri irm iro irr irs iru irx is- isc ise isi ism iso isr iss isu iu- iuc iue iui ium iur ius ixc ixe ixi m-o m-r mc- mcc mce mci mcm mco mcr mcs mcu mcx mec mee mei mem meo mer mes meu mex mi- mic mie mii mim mio mir mis miu mix mmc mme mmi mmm mmo mmr mms mmu mmx moc moe moi mom moo mor mos mou mox mrc mre mri mrm mro mrr mrs mru mrx msc mse msi msm mso msr mss msu msx muc mue mui mum mur mus muu mux mxc mxi mxr mxs mxu o-i oc- occ oci ocm oco ocr ocs ocu ocx oec oee oei oem oeo oer oes oex oic oie oii oim oio oir ois oiu om- omc ome omi omm omo omr oms omu omx oo- ooc ooi oom ooo oor oos oox or- orc ore ori orm oro orr ors oru orx os- osc ose osi osm oso osr oss osu osx ou- ouc oue oui oum ouo our ous ox- oxc oxi oxo oxx rcc rce rci rcm rco rcr rcs rcu rcx re- rec ree rei rem reo rer res reu rex ric rie rii rim rio rir ris rix rmc rme rmi rmm rmo rmr rms rmx roc roe roi rom roo ror ros rou rox rrc rri rrm rrr rrs rru rsc rse rsi rsm rso rsr rss rsu rsx ruc rue rui rum ruo rur rus ruu rux rxr rxs scc sce sci scm sco scr scs scu scx se- sec see sei sem seo ser ses seu sex sic sie sii sim sio sir sis siu six smc sme smi smm smo smr sms smu smx soc soe soi som soo sor sos sou sox sr- src sre sri srm sro srr srs srx ss- ssc sse ssi ssm sso ssr sss ssu ssx suc sue sui sum suo sur sus suu sux sxc sxi sxm sxs sxu ucc uce uci ucm uco ucr ucs ucu uec uee uei uem uer ues uic uie uii uim uio uir uis uiu um- umc ume umi umm umo umr ums umu uoc uoe uom uoo uor uos uox ur- urc ure uri urm uro urr urs uru urx usc use usi usm uso usr uss usu usx uuc uue uum uur uus uuu uxc uxo uxr uxu xci xcr xcx xee xem xer xes xeu xex xic xie xii xio xis xiu xix xmc xmi xmm xmo xmr xms xmu xmx xoc xoi xom xoo xor xos xox xrc xrx xsc xsi xsm xss xue xui xus xxi xxo xxx