-er -ol c-- ccc cce ccl cco ccr ccs cct ccu ce- cec cee cel ceo cer ces cet ceu cl- clc cle cll clo clr cls clt clu co- coc coe col coo cor cos cot cou crc cre crl cro crr crs crt cru csc cse csl cso csr css cst csu ctc cte ctl cto ctr cts ctt ctu cuc cue cul cuo cur cus cut cuu ec- ecc ece ecl eco ecr ecs ect ecu eec eee eel eeo eer ees eet elc ele ell elo elr els elt elu eo- eoc eoe eol eoo eor eos eot eou erc ere erl ero err ers ert eru es- esc ese esl eso esr ess est esu etc ete etl eto etr ets ett etu eu- euc eue eul eur eus eut lcc lce lcl lco lcr lcs lct lcu lec lee lel leo ler les let leu llc lle lll llo llr lls llt llu loc loe lol loo lor los lot lou lrc lro lrr lrs lrt lru lsc lse lsl lso lsr lss lst lsu ltc lte ltl lto ltr lts ltt ltu luc lue lul luo lur lus lut luu oc- occ ocl oco ocr ocs oct ocu oec oee oel oeo oer oes oet olc ole oll olo ols olt olu oo- ooc ool ooo oor oos oot or- orc ore orl oro orr ors ort oru os- osc ose osl oso osr oss ost osu ot- otc ote otl oto otr ots ott otu ou- ouc oue oul ouo our ous out rcc rce rcl rco rcr rcs rct rcu re- rec ree rel reo rer res ret reu rlc rle rll rlo rlr rls rlt rlu roc roe rol roo ror ros rot rou rrc rrl rrr rrs rrt rru rsc rse rsl rso rsr rss rst rsu rtc rte rtl rto rtr rts rtt rtu ruc rue ruo rur rus rut ruu scc sce scl sco scr scs sct scu se- sec see sel seo ser ses set seu slc sle sll slo slr sls slt slu soc soe sol soo sor sos sot sou sr- src sre srl sro srr srs srt ss- ssc sse ssl sso ssr sss sst ssu stc ste stl sto str sts stt stu suc sue sul suo sur sus sut suu tcc tce tcl tco tcr tcs tct tcu te- tec tee tel teo ter tes tet teu tlc tle tll tlo tlr tls tlt tlu to- toc toe tol too tor tos tot tou trc tre trl tro trr trs trt tru tsc tse tsl tso tsr tss tst tsu ttc tte ttl tto ttr tts ttt ttu tuc tue tul tuo tur tus tut tuu ucc uce ucl uco ucr ucs uct ucu uec uee uel uer ues uet ulc ule ull ulo ulr uls ult ulu uoc uoe uol uoo uor uos uot ur- urc ure url uro urr urs urt uru usc use usl uso usr uss ust usu utc ute utl uto utr uts utt utu uuc uue uur uus uut uuu