-er -ic c-- ccc cce ccf cci ccl ccm ccr ccu ccx ce- cec cee cef cei cel cem cer ceu cex cfc cfe cff cfi cfl cfm cfr cfu cfx ci- cic cie cif cii cil cim cir ciu cix cl- clc cle clf cli cll clm clr clu clx cmc cme cmf cmi cml cmm cmr cmu cmx crc cre crf cri crl crm crr cru crx cuc cue cuf cui cul cum cur cuu cxc cxf cxi cxl cxr cxx ec- ecc ece ecf eci ecl ecm ecr ecu ecx eec eee eef eel eem eer eex ef- efc efe eff efi efl efm efr efx eic eie eif eii eil eim eir eiu eix elc ele elf eli ell elm elr elu elx em- emc eme emf emi eml emm emr emu emx erc ere erf eri erl erm err eru eu- euc eue euf eui eul eur eux ex- exc exe exi exl exr exu exx fcc fce fcf fci fcl fcm fcr fcu fcx fec fee fef fei fel fem fer feu fex ffc ffe fff ffi ffl ffm ffr ffu ffx fic fie fif fii fil fim fir fiu fix flc fle flf fli fll flm flr flu flx fmc fme fmf fmi fml fmm fmr fmu fmx frc fre frf fri frl frm frr fru fue fuf fui ful fum fur fuu fux fxe fxi fxm fxr fxu fxx i-f icc ice icf ici icl icm icr icu ie- iec iee ief iei iel iem ier iex ifc ife iff ifi ifl ifm ifr ifu ifx iic iie iif iii iil iim iir iiu iix il- ilc ile ilf ili ill ilm ilr ilu ilx im- imc ime imf imi iml imm imu imx ir- irc ire irf iri irl irm irr iru irx iu- iuc iue iui ium iur ixc ixe ixi ixl lcc lce lcf lci lcl lcm lcr lcu lcx lec lee lef lei lel lem ler leu lex lfc lfe lff lfi lfl lfm lfr lfu lfx lic lie lif lii lil lim lir liu lix llc lle llf lli lll llm llr llu lmc lme lmf lmi lml lmm lmr lmu lrc lrf lri lrm lrr lru luc lue luf lui lul lum lur luu lux lxc lxi lxr lxx m-f m-r mc- mcc mce mcf mci mcl mcm mcr mcu mcx mec mee mef mei mel mem mer meu mex mfc mfe mff mfi mfl mfm mfr mfu mi- mic mie mif mii mil mim mir miu mix mlc mle mlf mli mll mlm mlr mlu mlx mmc mme mmf mmi mml mmm mmr mmu mmx mrc mre mrf mri mrl mrm mrr mru mrx muc mue muf mui mul mum mur muu mux mxc mxi mxl mxr mxu rcc rce rcf rci rcl rcm rcr rcu rcx re- rec ree ref rei rel rem rer reu rex rfc rfe rff rfi rfl rfm rfr rfu ric rie rif rii ril rim rir rix rlc rle rlf rli rll rlm rlr rlu rmc rme rmf rmi rml rmm rmr rmx rrc rrf rri rrl rrm rrr rru ruc rue ruf rui rum rur ruu rux rxr ucc uce ucf uci ucl ucm ucr ucu uec uee uef uei uel uem uer ufc ufe uff ufi ufl ufm ufr ufu ufx uic uie uif uii uil uim uir uiu ulc ule ulf uli ull ulm ulr ulu um- umc ume umf umi uml umm umr umu ur- urc ure urf uri url urm urr uru urx uuc uue uum uur uuu uxc uxf uxr uxu xcf xci xcl xcr xcx xee xel xem xer xeu xex xfe xfl xfm xfx xic xie xii xiu xix xlf xli xlm xlr xmc xmf xmi xml xmm xmr xmu xmx xrc xrf xrx xue xui xul xxi xxl xxx