-er -ic c-- ccc cce ccf cci ccl ccr ccs ccu ce- cec cee cef cei cel cer ces ceu cfc cfe cff cfi cfl cfr cfs cfu ci- cic cie cif cii cil cir cis ciu cl- clc cle clf cli cll clr cls clu crc cre crf cri crl crr crs cru csc cse csf csi csl csr css csu cuc cue cuf cui cul cur cus cuu ec- ecc ece ecf eci ecl ecr ecs ecu eec eee eef eel eer ees ef- efc efe eff efi efl efr efs eic eie eif eii eil eir eis eiu elc ele elf eli ell elr els elu erc ere erf eri erl err ers eru es- esc ese esf esi esl esr ess esu eu- euc eue euf eui eul eur eus fcc fce fcf fci fcl fcr fcs fcu fec fee fef fei fel fer fes feu ffc ffe fff ffi ffl ffr ffs ffu fic fie fif fii fil fir fis fiu flc fle flf fli fll flr fls flu frc fre frf fri frl frr frs fru fsc fse fsf fsi fsl fsr fss fsu fue fuf fui ful fur fus fuu i-f icc ice icf ici icl icr ics icu ie- iec iee ief iei iel ier ies ifc ife iff ifi ifl ifr ifs ifu iic iie iif iii iil iir iis iiu il- ilc ile ilf ili ill ilr ils ilu ir- irc ire irf iri irl irr irs iru is- isc ise isf isi isl isr iss isu iu- iuc iue iui iur ius lcc lce lcf lci lcl lcr lcs lcu lec lee lef lei lel ler les leu lfc lfe lff lfi lfl lfr lfs lfu lic lie lif lii lil lir lis liu llc lle llf lli lll llr lls llu lrc lrf lri lrr lrs lru lsc lse lsf lsi lsl lsr lss lsu luc lue luf lui lul lur lus luu rcc rce rcf rci rcl rcr rcs rcu re- rec ree ref rei rel rer res reu rfc rfe rff rfi rfl rfr rfs rfu ric rie rif rii ril rir ris rlc rle rlf rli rll rlr rls rlu rrc rrf rri rrl rrr rrs rru rsc rse rsf rsi rsl rsr rss rsu ruc rue ruf rui rur rus ruu scc sce scf sci scl scr scs scu se- sec see sef sei sel ser ses seu sfc sfe sff sfi sfl sfr sfs sfu sic sie sif sii sil sir sis siu slc sle slf sli sll slr sls slu sr- src sre srf sri srl srr srs ss- ssc sse ssf ssi ssl ssr sss ssu suc sue suf sui sul sur sus suu ucc uce ucf uci ucl ucr ucs ucu uec uee uef uei uel uer ues ufc ufe uff ufi ufl ufr ufs ufu uic uie uif uii uil uir uis uiu ulc ule ulf uli ull ulr uls ulu ur- urc ure urf uri url urr urs uru usc use usf usi usl usr uss usu uuc uue uur uus uuu