-er -ey c-- ccc cce cco ccr cct ccu ce- cec cee ceo ceq cer cet ceu cey co- coc coe coo coq cor cot cou coy cqc cqo cqt crc cre cro crq crr crt cru cry ctc cte cto ctq ctr ctt ctu cty cuc cue cuo cuq cur cut cuu cuy cyc cye cyo cyr cyt ec- ecc ece eco ecq ecr ect ecu eec eee eeo eer eet eey eo- eoc eoe eoo eoq eor eot eou eqe eqq eqt equ erc ere ero erq err ert eru ery etc ete eto etr ett etu ety eu- euc eue eur eut eyc eye eyo eyr eyt oc- occ oco ocr oct ocu oec oee oeo oer oet oey oo- ooc ooo oor oot oqo or- orc ore oro orr ort oru ory ot- otc ote oto otr ott otu ou- ouc oue ouo our out oye oyo qcc qco qct qec qee qeo qet qoo qor qqq qqu qrc qre qrt qru qtc qto qtq qtr qty qu- que quo qur qut quy rcc rce rco rcr rct rcu re- rec ree reo req rer ret reu rey roc roe roo ror rot rou roy rqc rrc rrq rrr rrt rru rtc rte rto rtq rtr rtt rtu rty ruc rue ruo rur rut ruu ruy ry- ryc rye ryo ryr ryu ryy tcc tce tco tcr tct tcu te- tec tee teo teq ter tet teu tey to- toc toe too toq tor tot tou toy tqo trc tre tro trq trr trt tru try ttc tte tto ttr ttt ttu tty tuc tue tuo tur tut tuu tuy tyc tye tyo tyr tyt ucc uce uco ucr uct ucu uec uee uer uet uey uoc uoe uoo uor uot ur- urc ure uro urr urt uru ury utc ute uto utr utt utu uty uuc uue uur uut uuu uyc uyo uyu ycc yce yco ycu ycy yec yee yeo yer yet yey yoc yoe yoo yor yot you yoy yqr yqt yrc yre yro yrt yru ytc yte yto ytr ytt ytu yue yuo yur yut yuu yuy yyc yye yyt yyu yyy