-er c-- ccc cce ccf cco ccr ccs cct ccu ce- cec cee cef ceo ceq cer ces cet ceu cfc cfe cff cfo cfq cfr cfs cft cfu co- coc coe cof coo coq cor cos cot cou cqc cqf cqo cqs cqt crc cre crf cro crq crr crs crt cru csc cse csf cso csq csr css cst csu ctc cte ctf cto ctq ctr cts ctt ctu cuc cue cuf cuo cuq cur cus cut cuu ec- ecc ece ecf eco ecq ecr ecs ect ecu eec eee eef eeo eer ees eet ef- efc efe eff efo efr efs eft eo- eoc eoe eof eoo eoq eor eos eot eou eqe eqf eqq eqs eqt equ erc ere erf ero erq err ers ert eru es- esc ese esf eso esq esr ess est esu etc ete etf eto etr ets ett etu eu- euc eue euf eur eus eut fcc fce fcf fco fcr fcs fct fcu fec fee fef feo fer fes fet feu ffc ffe fff ffo ffr ffs fft ffu foc foe fof foo for fos fot fou fqt frc fre frf fro frq frr frs frt fru fsc fse fsf fso fsq fsr fss fst fsu ftc fte ftf fto ftq ftr fts ftt ftu fue fuf fuo fur fus fut fuu oc- occ ocf oco ocr ocs oct ocu oec oee oef oeo oer oes oet of- ofc ofe off ofo ofr ofs oft ofu oo- ooc oof ooo oor oos oot oqo or- orc ore orf oro orr ors ort oru os- osc ose osf oso osq osr oss ost osu ot- otc ote otf oto otr ots ott otu ou- ouc oue ouf ouo our ous out qcc qco qcs qct qec qee qef qeo qet qfc qfe qff qfs qft qof qoo qor qos qqq qqu qrc qre qrs qrt qru qsc qso qsr qst qtc qto qtq qtr qts qu- que quo qur qus qut rcc rce rcf rco rcr rcs rct rcu re- rec ree ref reo req rer res ret reu rfc rfe rff rfo rfq rfr rfs rft rfu roc roe rof roo ror ros rot rou rqc rqs rrc rrf rrq rrr rrs rrt rru rsc rse rsf rso rsq rsr rss rst rsu rtc rte rtf rto rtq rtr rts rtt rtu ruc rue ruf ruo rur rus rut ruu scc sce scf sco scr scs sct scu se- sec see sef seo seq ser ses set seu sfc sfe sff sfo sfr sfs sft sfu soc soe sof soo soq sor sos sot sou sqq sqr sqs sr- src sre srf sro srq srr srs srt ss- ssc sse ssf sso ssq ssr sss sst ssu stc ste stf sto stq str sts stt stu suc sue suf suo suq sur sus sut suu tcc tce tcf tco tcr tcs tct tcu te- tec tee tef teo teq ter tes tet teu tfc tfe tff tfo tfr tfs tft tfu to- toc toe tof too toq tor tos tot tou tqo trc tre trf tro trq trr trs trt tru tsc tse tsf tso tsq tsr tss tst tsu ttc tte ttf tto ttr tts ttt ttu tuc tue tuf tuo tur tus tut tuu ucc uce ucf uco ucr ucs uct ucu uec uee uef uer ues uet ufc ufe uff ufo ufr ufs uft ufu uoc uoe uoo uor uos uot ur- urc ure urf uro urr urs urt uru usc use usf uso usr uss ust usu utc ute utf uto utr uts utt utu uuc uue uur uus uut uuu