-er -ic c-- ccc cce ccf cci cco ccr ccs ccu ce- cec cee cef cei ceo cer ces ceu cfc cfe cff cfi cfo cfr cfs cfu ci- cic cie cif cii cio cir cis ciu co- coc coe cof coi coo cor cos cou crc cre crf cri cro crr crs cru csc cse csf csi cso csr css csu cuc cue cuf cui cuo cur cus cuu ec- ecc ece ecf eci eco ecr ecs ecu eec eee eef eeo eer ees ef- efc efe eff efi efo efr efs eic eie eif eii eio eir eis eiu eo- eoc eoe eof eoi eoo eor eos eou erc ere erf eri ero err ers eru es- esc ese esf esi eso esr ess esu eu- euc eue euf eui eur eus fcc fce fcf fci fco fcr fcs fcu fec fee fef fei feo fer fes feu ffc ffe fff ffi ffo ffr ffs ffu fic fie fif fii fir fis fiu foc foe fof foi foo for fos fou frc fre frf fri fro frr frs fru fsc fse fsf fsi fso fsr fss fsu fue fuf fui fuo fur fus fuu i-f icc ice icf ici ico icr ics icu ie- iec iee ief iei ier ies ifc ife iff ifi ifo ifr ifs ifu iic iie iif iii iio iir iis iiu io- ioc ioe iof ioi ioo ior ios iou ir- irc ire irf iri iro irr irs iru is- isc ise isf isi iso isr iss isu iu- iuc iue iui iur ius o-i oc- occ ocf oci oco ocr ocs ocu oec oee oef oei oeo oer oes of- ofc ofe off ofi ofo ofr ofs ofu oic oie oif oii oio oir ois oiu oo- ooc oof ooi ooo oor oos or- orc ore orf ori oro orr ors oru os- osc ose osf osi oso osr oss osu ou- ouc oue ouf oui ouo our ous rcc rce rcf rci rco rcr rcs rcu re- rec ree ref rei reo rer res reu rfc rfe rff rfi rfo rfr rfs rfu ric rie rif rii rio rir ris roc roe rof roi roo ror ros rou rrc rrf rri rrr rrs rru rsc rse rsf rsi rso rsr rss rsu ruc rue ruf rui ruo rur rus ruu scc sce scf sci sco scr scs scu se- sec see sef sei seo ser ses seu sfc sfe sff sfi sfo sfr sfs sfu sic sie sif sii sio sir sis siu soc soe sof soi soo sor sos sou sr- src sre srf sri sro srr srs ss- ssc sse ssf ssi sso ssr sss ssu suc sue suf sui suo sur sus suu ucc uce ucf uci uco ucr ucs ucu uec uee uef uei uer ues ufc ufe uff ufi ufo ufr ufs ufu uic uie uif uii uio uir uis uiu uoc uoe uoo uor uos ur- urc ure urf uri uro urr urs uru usc use usf usi uso usr uss usu uuc uue uur uus uuu