-er -ic c-- ccc cce cci ccn cco ccr ccs ccu ccx ce- cec cee cei cen ceo cer ces ceu cex ci- cic cie cii cin cio cir cis ciu cix cn- cnc cne cni cnn cno cnr cns cnu cnx co- coc coe coi con coo cor cos cou cox crc cre cri crn cro crr crs cru crx csc cse csi csn cso csr css csu csx cuc cue cui cun cuo cur cus cuu cxc cxi cxo cxr cxs cxx ec- ecc ece eci ecn eco ecr ecs ecu ecx eec eee een eeo eer ees eex eic eie eii ein eio eir eis eiu eix en- enc ene eni enn eno enr ens enu eo- eoc eoe eoi eon eoo eor eos eou erc ere eri ern ero err ers eru es- esc ese esi esn eso esr ess esu esx eu- euc eue eui eun eur eus eux ex- exc exe exi exo exr exs exu exx icc ice ici icn ico icr ics icu ie- iec iee iei ien ier ies iex iic iie iii iin iio iir iis iiu iix in- inc ine ini inn ino inr ins inu inx io- ioc ioe ioi ion ioo ior ios iou ir- irc ire iri irn iro irr irs iru irx is- isc ise isi isn iso isr iss isu iu- iuc iue iui iur ius ixc ixe ixi ixn n-i ncc nce nci ncn nco ncr ncs ncu ncx ne- nec nee nei nen neo ner nes neu nex nic nie nii nin nio nir nis niu nix nnc nne nni nnn nno nns nnu no- noc noe noi non noo nor nos nou nox nrc nre nri nrn nro nrr nrs nru nrx nsc nse nsi nsn nso nsr nss nsu nsx nuc nue nui nun nuo nur nus nuu nux nxc o-i oc- occ oci ocn oco ocr ocs ocu ocx oec oee oei oen oeo oer oes oex oic oie oii oin oio oir ois oiu on- onc one oni onn ono onr ons onu onx oo- ooc ooi oon ooo oor oos oox or- orc ore ori orn oro orr ors oru orx os- osc ose osi osn oso osr oss osu osx ou- ouc oue oui oun ouo our ous ox- oxc oxi oxn oxo oxx rcc rce rci rcn rco rcr rcs rcu rcx re- rec ree rei ren reo rer res reu rex ric rie rii rin rio rir ris rix rnc rni rnn rno rnr rns rnu roc roe roi ron roo ror ros rou rox rrc rri rrn rrr rrs rru rsc rse rsi rsn rso rsr rss rsu rsx ruc rue rui run ruo rur rus ruu rux rxr rxs scc sce sci scn sco scr scs scu scx se- sec see sei sen seo ser ses seu sex sic sie sii sin sio sir sis siu six snc sne sni snn sno snr sns snu soc soe soi son soo sor sos sou sox sr- src sre sri srn sro srr srs srx ss- ssc sse ssi ssn sso ssr sss ssu ssx suc sue sui sun suo sur sus suu sux sxc sxi sxn sxs sxu ucc uce uci ucn uco ucr ucs ucu uec uee uei uen uer ues uic uie uii uin uio uir uis uiu un- unc une uni unn uno unr uns unu unx uoc uoe uon uoo uor uos uox ur- urc ure uri urn uro urr urs uru urx usc use usi usn uso usr uss usu usx uuc uue uun uur uus uuu uxc uxo uxr uxu xci xcr xcx xee xen xer xes xeu xex xic xie xii xin xio xis xiu xix xnc xno xns xnu xoc xoi xon xoo xor xos xox xrc xrx xsc xsi xss xue xui xun xus xxi xxo xxx