-er -ic c-- ccc cce ccf cci ccm cco ccr ccs ccu ce- cec cee cef cei cem ceo cer ces ceu cfc cfe cff cfi cfm cfo cfr cfs cfu ci- cic cie cif cii cim cio cir cis ciu cmc cme cmf cmi cmm cmo cmr cms cmu co- coc coe cof coi com coo cor cos cou crc cre crf cri crm cro crr crs cru csc cse csf csi csm cso csr css csu cuc cue cuf cui cum cuo cur cus cuu ec- ecc ece ecf eci ecm eco ecr ecs ecu eec eee eef eem eeo eer ees ef- efc efe eff efi efm efo efr efs eic eie eif eii eim eio eir eis eiu em- emc eme emf emi emm emo emr ems emu eo- eoc eoe eof eoi eom eoo eor eos eou erc ere erf eri erm ero err ers eru es- esc ese esf esi esm eso esr ess esu eu- euc eue euf eui eur eus fcc fce fcf fci fcm fco fcr fcs fcu fec fee fef fei fem feo fer fes feu ffc ffe fff ffi ffm ffo ffr ffs ffu fic fie fif fii fim fir fis fiu fmc fme fmf fmi fmm fmo fmr fms fmu foc foe fof foi fom foo for fos fou frc fre frf fri frm fro frr frs fru fsc fse fsf fsi fsm fso fsr fss fsu fue fuf fui fum fuo fur fus fuu i-f icc ice icf ici icm ico icr ics icu ie- iec iee ief iei iem ier ies ifc ife iff ifi ifm ifo ifr ifs ifu iic iie iif iii iim iio iir iis iiu im- imc ime imf imi imm imo ims imu io- ioc ioe iof ioi iom ioo ior ios iou ir- irc ire irf iri irm iro irr irs iru is- isc ise isf isi ism iso isr iss isu iu- iuc iue iui ium iur ius m-f m-o m-r mc- mcc mce mcf mci mcm mco mcr mcs mcu mec mee mef mei mem meo mer mes meu mfc mfe mff mfi mfm mfo mfr mfs mfu mi- mic mie mif mii mim mio mir mis miu mmc mme mmf mmi mmm mmo mmr mms mmu moc moe mof moi mom moo mor mos mou mrc mre mrf mri mrm mro mrr mrs mru msc mse msf msi msm mso msr mss msu muc mue muf mui mum mur mus muu o-i oc- occ ocf oci ocm oco ocr ocs ocu oec oee oef oei oem oeo oer oes of- ofc ofe off ofi ofm ofo ofr ofs ofu oic oie oif oii oim oio oir ois oiu om- omc ome omf omi omm omo omr oms omu oo- ooc oof ooi oom ooo oor oos or- orc ore orf ori orm oro orr ors oru os- osc ose osf osi osm oso osr oss osu ou- ouc oue ouf oui oum ouo our ous rcc rce rcf rci rcm rco rcr rcs rcu re- rec ree ref rei rem reo rer res reu rfc rfe rff rfi rfm rfo rfr rfs rfu ric rie rif rii rim rio rir ris rmc rme rmf rmi rmm rmo rmr rms roc roe rof roi rom roo ror ros rou rrc rrf rri rrm rrr rrs rru rsc rse rsf rsi rsm rso rsr rss rsu ruc rue ruf rui rum ruo rur rus ruu scc sce scf sci scm sco scr scs scu se- sec see sef sei sem seo ser ses seu sfc sfe sff sfi sfm sfo sfr sfs sfu sic sie sif sii sim sio sir sis siu smc sme smf smi smm smo smr sms smu soc soe sof soi som soo sor sos sou sr- src sre srf sri srm sro srr srs ss- ssc sse ssf ssi ssm sso ssr sss ssu suc sue suf sui sum suo sur sus suu ucc uce ucf uci ucm uco ucr ucs ucu uec uee uef uei uem uer ues ufc ufe uff ufi ufm ufo ufr ufs ufu uic uie uif uii uim uio uir uis uiu um- umc ume umf umi umm umo umr ums umu uoc uoe uom uoo uor uos ur- urc ure urf uri urm uro urr urs uru usc use usf usi usm uso usr uss usu uuc uue uum uur uus uuu