-er -ic -ol c-- ccc cce ccf cci ccl cco ccr ccs ccu ccx ce- cec cee cef cei cel ceo cer ces ceu cex cfc cfe cff cfi cfl cfo cfr cfs cfu cfx ci- cic cie cif cii cil cio cir cis ciu cix cl- clc cle clf cli cll clo clr cls clu clx co- coc coe cof coi col coo cor cos cou cox crc cre crf cri crl cro crr crs cru crx csc cse csf csi csl cso csr css csu csx cuc cue cuf cui cul cuo cur cus cuu cxc cxf cxi cxl cxo cxr cxs cxx ec- ecc ece ecf eci ecl eco ecr ecs ecu ecx eec eee eef eel eeo eer ees eex ef- efc efe eff efi efl efo efr efs efx eic eie eif eii eil eio eir eis eiu eix elc ele elf eli ell elo elr els elu elx eo- eoc eoe eof eoi eol eoo eor eos eou erc ere erf eri erl ero err ers eru es- esc ese esf esi esl eso esr ess esu esx eu- euc eue euf eui eul eur eus eux ex- exc exe exi exl exo exr exs exu exx fcc fce fcf fci fcl fco fcr fcs fcu fcx fec fee fef fei fel feo fer fes feu fex ffc ffe fff ffi ffl ffo ffr ffs ffu ffx fic fie fif fii fil fir fis fiu fix flc fle flf fli fll flo flr fls flu flx foc foe fof foi fol foo for fos fou fox frc fre frf fri frl fro frr frs fru fsc fse fsf fsi fsl fso fsr fss fsu fsx fue fuf fui ful fuo fur fus fuu fux fxe fxi fxr fxs fxu fxx i-f icc ice icf ici icl ico icr ics icu ie- iec iee ief iei iel ier ies iex ifc ife iff ifi ifl ifo ifr ifs ifu ifx iic iie iif iii iil iio iir iis iiu iix il- ilc ile ilf ili ill ilo ilr ils ilu ilx io- ioc ioe iof ioi iol ioo ior ios iou ir- irc ire irf iri irl iro irr irs iru irx is- isc ise isf isi isl iso isr iss isu iu- iuc iue iui iur ius ixc ixe ixi ixl lcc lce lcf lci lcl lco lcr lcs lcu lcx lec lee lef lei lel leo ler les leu lex lfc lfe lff lfi lfl lfo lfr lfs lfu lfx lic lie lif lii lil lio lir lis liu lix llc lle llf lli lll llo llr lls llu loc loe lof loi lol loo lor los lou lox lrc lrf lri lro lrr lrs lru lsc lse lsf lsi lsl lso lsr lss lsu luc lue luf lui lul luo lur lus luu lux lxc lxi lxo lxr lxx o-i oc- occ ocf oci ocl oco ocr ocs ocu ocx oec oee oef oei oel oeo oer oes oex of- ofc ofe off ofi ofl ofo ofr ofs ofu ofx oic oie oif oii oil oio oir ois oiu olc ole olf oli oll olo ols olu oo- ooc oof ooi ool ooo oor oos oox or- orc ore orf ori orl oro orr ors oru orx os- osc ose osf osi osl oso osr oss osu osx ou- ouc oue ouf oui oul ouo our ous ox- oxc oxf oxi oxo oxx rcc rce rcf rci rcl rco rcr rcs rcu rcx re- rec ree ref rei rel reo rer res reu rex rfc rfe rff rfi rfl rfo rfr rfs rfu ric rie rif rii ril rio rir ris rix rlc rle rlf rli rll rlo rlr rls rlu roc roe rof roi rol roo ror ros rou rox rrc rrf rri rrl rrr rrs rru rsc rse rsf rsi rsl rso rsr rss rsu rsx ruc rue ruf rui ruo rur rus ruu rux rxr rxs scc sce scf sci scl sco scr scs scu scx se- sec see sef sei sel seo ser ses seu sex sfc sfe sff sfi sfl sfo sfr sfs sfu sfx sic sie sif sii sil sio sir sis siu six slc sle slf sli sll slo slr sls slu slx soc soe sof soi sol soo sor sos sou sox sr- src sre srf sri srl sro srr srs srx ss- ssc sse ssf ssi ssl sso ssr sss ssu ssx suc sue suf sui sul suo sur sus suu sux sxc sxi sxl sxs sxu ucc uce ucf uci ucl uco ucr ucs ucu uec uee uef uei uel uer ues ufc ufe uff ufi ufl ufo ufr ufs ufu ufx uic uie uif uii uil uio uir uis uiu ulc ule ulf uli ull ulo ulr uls ulu uoc uoe uol uoo uor uos uox ur- urc ure urf uri url uro urr urs uru urx usc use usf usi usl uso usr uss usu usx uuc uue uur uus uuu uxc uxf uxo uxr uxu xcf xci xcl xcr xcx xee xel xer xes xeu xex xfe xfl xfs xfx xic xie xii xio xis xiu xix xlf xli xlr xls xoc xof xoi xoo xor xos xox xrc xrf xrx xsc xsi xsl xss xue xui xul xus xxi xxl xxo xxx