-er -ic c-- ccc cce cci ccn cco ccr ccs ccu ce- cec cee cei cen ceo cer ces ceu ci- cic cie cii cin cio cir cis ciu cn- cnc cne cni cnn cno cnr cns cnu co- coc coe coi con coo cor cos cou crc cre cri crn cro crr crs cru csc cse csi csn cso csr css csu cuc cue cui cun cuo cur cus cuu ec- ecc ece eci ecn eco ecr ecs ecu eec eee een eeo eer ees eic eie eii ein eio eir eis eiu 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 eu- euc eue eui eun eur eus icc ice ici icn ico icr ics icu ie- iec iee iei ien ier ies iic iie iii iin iio iir iis iiu in- inc ine ini inn ino inr ins inu io- ioc ioe ioi ion ioo ior ios iou ir- irc ire iri irn iro irr irs iru is- isc ise isi isn iso isr iss isu iu- iuc iue iui iur ius n-i ncc nce nci ncn nco ncr ncs ncu ne- nec nee nei nen neo ner nes neu nic nie nii nin nio nir nis niu nnc nne nni nnn nno nns nnu no- noc noe noi non noo nor nos nou nrc nre nri nrn nro nrr nrs nru nsc nse nsi nsn nso nsr nss nsu nuc nue nui nun nuo nur nus nuu o-i oc- occ oci ocn oco ocr ocs ocu oec oee oei oen oeo oer oes oic oie oii oin oio oir ois oiu on- onc one oni onn ono onr ons onu oo- ooc ooi oon ooo oor oos or- orc ore ori orn oro orr ors oru os- osc ose osi osn oso osr oss osu ou- ouc oue oui oun ouo our ous rcc rce rci rcn rco rcr rcs rcu re- rec ree rei ren reo rer res reu ric rie rii rin rio rir ris rnc rni rnn rno rnr rns rnu roc roe roi ron roo ror ros rou rrc rri rrn rrr rrs rru rsc rse rsi rsn rso rsr rss rsu ruc rue rui run ruo rur rus ruu scc sce sci scn sco scr scs scu se- sec see sei sen seo ser ses seu sic sie sii sin sio sir sis siu snc sne sni snn sno snr sns snu soc soe soi son soo sor sos sou sr- src sre sri srn sro srr srs ss- ssc sse ssi ssn sso ssr sss ssu suc sue sui sun suo sur sus suu 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 uoc uoe uon uoo uor uos ur- urc ure uri urn uro urr urs uru usc use usi usn uso usr uss usu uuc uue uun uur uus uuu