-er -ic c-- ccc cce ccf cci ccm cco ccr ccu ccx ce- cec cee cef cei cem ceo cer ceu cex cfc cfe cff cfi cfm cfo cfr cfu cfx ci- cic cie cif cii cim cio cir ciu cix cmc cme cmf cmi cmm cmo cmr cmu cmx co- coc coe cof coi com coo cor cou cox crc cre crf cri crm cro crr cru crx cuc cue cuf cui cum cuo cur cuu cxc cxf cxi cxo cxr cxx ec- ecc ece ecf eci ecm eco ecr ecu ecx eec eee eef eem eeo eer eex ef- efc efe eff efi efm efo efr efx eic eie eif eii eim eio eir eiu eix em- emc eme emf emi emm emo emr emu emx eo- eoc eoe eof eoi eom eoo eor eou erc ere erf eri erm ero err eru eu- euc eue euf eui eur eux ex- exc exe exi exo exr exu exx fcc fce fcf fci fcm fco fcr fcu fcx fec fee fef fei fem feo fer feu fex ffc ffe fff ffi ffm ffo ffr ffu ffx fic fie fif fii fim fir fiu fix fmc fme fmf fmi fmm fmo fmr fmu fmx foc foe fof foi fom foo for fou fox frc fre frf fri frm fro frr fru fue fuf fui fum fuo fur fuu fux fxe fxi fxm fxr fxu fxx i-f icc ice icf ici icm ico icr icu ie- iec iee ief iei iem ier iex ifc ife iff ifi ifm ifo ifr ifu ifx iic iie iif iii iim iio iir iiu iix im- imc ime imf imi imm imo imu imx io- ioc ioe iof ioi iom ioo ior iou ir- irc ire irf iri irm iro irr iru irx iu- iuc iue iui ium iur ixc ixe ixi m-f m-o m-r mc- mcc mce mcf mci mcm mco mcr mcu mcx mec mee mef mei mem meo mer meu mex mfc mfe mff mfi mfm mfo mfr mfu mi- mic mie mif mii mim mio mir miu mix mmc mme mmf mmi mmm mmo mmr mmu mmx moc moe mof moi mom moo mor mou mox mrc mre mrf mri mrm mro mrr mru mrx muc mue muf mui mum mur muu mux mxc mxi mxr mxu o-i oc- occ ocf oci ocm oco ocr ocu ocx oec oee oef oei oem oeo oer oex of- ofc ofe off ofi ofm ofo ofr ofu ofx oic oie oif oii oim oio oir oiu om- omc ome omf omi omm omo omr omu omx oo- ooc oof ooi oom ooo oor oox or- orc ore orf ori orm oro orr oru orx ou- ouc oue ouf oui oum ouo our ox- oxc oxf oxi oxo oxx rcc rce rcf rci rcm rco rcr rcu rcx re- rec ree ref rei rem reo rer reu rex rfc rfe rff rfi rfm rfo rfr rfu ric rie rif rii rim rio rir rix rmc rme rmf rmi rmm rmo rmr rmx roc roe rof roi rom roo ror rou rox rrc rrf rri rrm rrr rru ruc rue ruf rui rum ruo rur ruu rux rxr ucc uce ucf uci ucm uco ucr ucu uec uee uef uei uem uer ufc ufe uff ufi ufm ufo ufr ufu ufx uic uie uif uii uim uio uir uiu um- umc ume umf umi umm umo umr umu uoc uoe uom uoo uor uox ur- urc ure urf uri urm uro urr uru urx uuc uue uum uur uuu uxc uxf uxo uxr uxu xcf xci xcr xcx xee xem xer xeu xex xfe xfm xfx xic xie xii xio xiu xix xmc xmf xmi xmm xmo xmr xmu xmx xoc xof xoi xom xoo xor xox xrc xrf xrx xue xui xxi xxo xxx