-er -ic c-- ccc cce ccf cci ccn cco ccr ccs ccu ce- cec cee cef cei cen ceo cer ces ceu cfc cfe cff cfi cfn cfo cfr cfs cfu ci- cic cie cif cii cin cio cir cis ciu cn- cnc cne cnf cni cnn cno cnr cns cnu co- coc coe cof coi con coo cor cos cou crc cre crf cri crn cro crr crs cru csc cse csf csi csn cso csr css csu cuc cue cuf cui cun cuo cur cus cuu ec- ecc ece ecf eci ecn eco ecr ecs ecu eec eee eef een eeo eer ees ef- efc efe eff efi efo efr efs eic eie eif eii ein eio eir eis eiu en- enc ene enf eni enn eno enr ens enu eo- eoc eoe eof eoi eon eoo eor eos eou erc ere erf eri ern ero err ers eru es- esc ese esf esi esn eso esr ess esu eu- euc eue euf eui eun eur eus fcc fce fcf fci fcn fco fcr fcs fcu fec fee fef fei fen feo fer fes feu ffc ffe fff ffi ffn ffo ffr ffs ffu fic fie fif fii fin fir fis fiu fnc fne fnf fni fnn fnr fns fnu foc foe fof foi fon foo for fos fou frc fre frf fri frn fro frr frs fru fsc fse fsf fsi fsn fso fsr fss fsu fue fuf fui fun fuo fur fus fuu i-f icc ice icf ici icn ico icr ics icu ie- iec iee ief iei ien ier ies ifc ife iff ifi ifn ifo ifr ifs ifu iic iie iif iii iin iio iir iis iiu in- inc ine inf ini inn ino inr ins inu io- ioc ioe iof ioi ion ioo ior ios iou ir- irc ire irf iri irn iro irr irs iru is- isc ise isf isi isn iso isr iss isu iu- iuc iue iui iur ius n-i ncc nce ncf nci ncn nco ncr ncs ncu ne- nec nee nef nei nen neo ner nes neu nfc nfe nff nfi nfn nfo nfr nfs nfu nic nie nif nii nin nio nir nis niu nnc nne nnf nni nnn nno nns nnu no- noc noe nof noi non noo nor nos nou nrc nre nrf nri nrn nro nrr nrs nru nsc nse nsf nsi nsn nso nsr nss nsu nuc nue nui nun nuo nur nus nuu o-i oc- occ ocf oci ocn oco ocr ocs ocu oec oee oef oei oen oeo oer oes of- ofc ofe off ofi ofn ofo ofr ofs ofu oic oie oif oii oin oio oir ois oiu on- onc one onf oni onn ono onr ons onu oo- ooc oof ooi oon ooo oor oos or- orc ore orf ori orn oro orr ors oru os- osc ose osf osi osn oso osr oss osu ou- ouc oue ouf oui oun ouo our ous rcc rce rcf rci rcn rco rcr rcs rcu re- rec ree ref rei ren reo rer res reu rfc rfe rff rfi rfn rfo rfr rfs rfu ric rie rif rii rin rio rir ris rnc rni rnn rno rnr rns rnu roc roe rof roi ron roo ror ros rou rrc rrf rri rrn rrr rrs rru rsc rse rsf rsi rsn rso rsr rss rsu ruc rue ruf rui run ruo rur rus ruu scc sce scf sci scn sco scr scs scu se- sec see sef sei sen seo ser ses seu sfc sfe sff sfi sfn sfo sfr sfs sfu sic sie sif sii sin sio sir sis siu snc sne snf sni snn sno snr sns snu soc soe sof soi son soo sor sos sou sr- src sre srf sri srn sro srr srs ss- ssc sse ssf ssi ssn sso ssr sss ssu suc sue suf sui sun suo sur sus suu ucc uce ucf uci ucn uco ucr ucs ucu uec uee uef uei uen uer ues ufc ufe uff ufi ufn ufo ufr ufs ufu uic uie uif uii uin uio uir uis uiu un- unc une unf uni unn uno unr uns unu uoc uoe uon uoo uor uos ur- urc ure urf uri urn uro urr urs uru usc use usf usi usn uso usr uss usu uuc uue uun uur uus uuu