-er -ic c-- ccc cce ccf cci ccl ccr ccs cct ccu ce- cec cee cef cei cel cer ces cet ceu cfc cfe cff cfi cfl cfr cfs cft cfu ci- cic cie cif cii cil cir cis cit ciu cl- clc cle clf cli cll clr cls clt clu crc cre crf cri crl crr crs crt cru csc cse csf csi csl csr css cst csu ctc cte ctf cti ctl ctr cts ctt ctu cuc cue cuf cui cul cur cus cut cuu ec- ecc ece ecf eci ecl ecr ecs ect ecu eec eee eef eel eer ees eet ef- efc efe eff efi efl efr efs eft eic eie eif eii eil eir eis eit eiu elc ele elf eli ell elr els elt elu erc ere erf eri erl err ers ert eru es- esc ese esf esi esl esr ess est esu etc ete etf eti etl etr ets ett etu eu- euc eue euf eui eul eur eus eut fcc fce fcf fci fcl fcr fcs fct fcu fec fee fef fei fel fer fes fet feu ffc ffe fff ffi ffl ffr ffs fft ffu fic fie fif fii fil fir fis fit fiu flc fle flf fli fll flr fls flt flu frc fre frf fri frl frr frs frt fru fsc fse fsf fsi fsl fsr fss fst fsu ftc fte ftf fti ftl ftr fts ftt ftu fue fuf fui ful fur fus fut fuu i-f icc ice icf ici icl icr ics ict icu ie- iec iee ief iei iel ier ies iet ifc ife iff ifi ifl ifr ifs ift ifu iic iie iif iii iil iir iis iit iiu il- ilc ile ilf ili ill ilr ils ilt ilu ir- irc ire irf iri irl irr irs irt iru is- isc ise isf isi isl isr iss ist isu itc ite itf iti itl its itt itu iu- iuc iue iui iur ius iut lcc lce lcf lci lcl lcr lcs lct lcu lec lee lef lei lel ler les let leu lfc lfe lff lfi lfl lfr lfs lft lfu lic lie lif lii lil lir lis lit liu llc lle llf lli lll llr lls llt llu lrc lrf lri lrr lrs lrt lru lsc lse lsf lsi lsl lsr lss lst lsu ltc lte ltf lti ltl ltr lts ltt ltu luc lue luf lui lul lur lus lut luu rcc rce rcf rci rcl rcr rcs rct rcu re- rec ree ref rei rel rer res ret reu rfc rfe rff rfi rfl rfr rfs rft rfu ric rie rif rii ril rir ris rit rlc rle rlf rli rll rlr rls rlt rlu rrc rrf rri rrl rrr rrs rrt rru rsc rse rsf rsi rsl rsr rss rst rsu rtc rte rtf rti rtl rtr rts rtt rtu ruc rue ruf rui rur rus rut ruu scc sce scf sci scl scr scs sct scu se- sec see sef sei sel ser ses set seu sfc sfe sff sfi sfl sfr sfs sft sfu sic sie sif sii sil sir sis sit siu slc sle slf sli sll slr sls slt slu sr- src sre srf sri srl srr srs srt ss- ssc sse ssf ssi ssl ssr sss sst ssu stc ste stf sti stl str sts stt stu suc sue suf sui sul sur sus sut suu tcc tce tcf tci tcl tcr tcs tct tcu te- tec tee tef tei tel ter tes tet teu tfc tfe tff tfi tfl tfr tfs tft tfu tic tie tif tii til tir tis tit tiu tlc tle tlf tli tll tlr tls tlt tlu trc tre trf tri trl trr trs trt tru tsc tse tsf tsi tsl tsr tss tst tsu ttc tte ttf tti ttl ttr tts ttt ttu tuc tue tuf tui tul tur tus tut tuu ucc uce ucf uci ucl ucr ucs uct ucu uec uee uef uei uel uer ues uet ufc ufe uff ufi ufl ufr ufs uft ufu uic uie uif uii uil uir uis uit uiu ulc ule ulf uli ull ulr uls ult ulu ur- urc ure urf uri url urr urs urt uru usc use usf usi usl usr uss ust usu utc ute utf uti utl utr uts utt utu uuc uue uur uus uut uuu