-er -ey c-- ccc ccd cce ccf cco ccr ccs ccu cdc cdd cde cdf cdo cdr cds cdu cdy ce- cec ced cee cef ceo cer ces ceu cey cfc cfd cfe cff cfo cfr cfs cfu co- coc cod coe cof coo cor cos cou coy crc crd cre crf cro crr crs cru cry csc csd cse csf cso csr css csu csy cuc cud cue cuf cuo cur cus cuu cuy cyc cyd cye cyf cyo cyr cys dcc dcd dce dcf dco dcr dcs dcu ddc ddd dde ddf ddo ddr dds ddu ddy de- dec ded dee def deo der des deu dey dfc dfd dfe dff dfo dfr dfs dfu doc dod doe dof doo dor dos dou doy drc drd dre dro drr drs dru dry dsc dsd dse dsf dso dsr dss dsu dsy duc dud due duf duo dur dus duy dy- dyc dyd dye dyo dyr dys dyu dyy ec- ecc ecd ece ecf eco ecr ecs ecu ed- edc edd ede edf edo edr eds edu edy eec eed eee eef eeo eer ees eey ef- efc efd efe eff efo efr efs eo- eoc eod eoe eof eoo eor eos eou erc erd ere erf ero err ers eru ery es- esc esd ese esf eso esr ess esu esy eu- euc eud eue euf eur eus eyc eyd eye eyo eyr eys fcc fcd fce fcf fco fcr fcs fcu fcy fdc fdd fde fdf fdo fdr fds fdu fec fed fee fef feo fer fes feu fey ffc ffd ffe fff ffo ffr ffs ffu ffy foc foe fof foo for fos fou foy frc frd fre frf fro frr frs fru fry fsc fsd fse fsf fso fsr fss fsu fud fue fuf fuo fur fus fuu fy- fyc fye fyo oc- occ ocd ocf oco ocr ocs ocu odc odd ode odf odo odr ods odu oec oed oee oef oeo oer oes oey of- ofc ofd ofe off ofo ofr ofs ofu oo- ooc ood oof ooo oor oos or- orc ord ore orf oro orr ors oru ory os- osc osd ose osf oso osr oss osu ou- ouc oud oue ouf ouo our ous oyd oye oyo oys rcc rcd rce rcf rco rcr rcs rcu rdc rdd rde rdf rdo rdr rds rdu rdy re- rec red ree ref reo rer res reu rey rfc rfd rfe rff rfo rfr rfs rfu roc rod roe rof roo ror ros rou roy rrc rrd rrf rrr rrs rru rsc rsd rse rsf rso rsr rss rsu ruc rud rue ruf ruo rur rus ruu ruy ry- ryc ryd rye ryf ryo ryr rys ryu ryy scc scd sce scf sco scr scs scu sdc sdd sde sdf sdo sdr sds sdu sdy se- sec sed see sef seo ser ses seu sey sfc sfd sfe sff sfo sfr sfs sfu soc sod soe sof soo sor sos sou soy sr- src srd sre srf sro srr srs sry ss- ssc ssd sse ssf sso ssr sss ssu suc sud sue suf suo sur sus suu suy sy- syc syd sye syr sys syu ucc ucd uce ucf uco ucr ucs ucu udc udd ude udf udo udr uds udu uec ued uee uef uer ues uey ufc ufd ufe uff ufo ufr ufs ufu uoc uod uoe uoo uor uos ur- urc urd ure urf uro urr urs uru ury usc usd use usf uso usr uss usu uuc uue uur uus uuu uyc uyo uys uyu ycc ycd yce ycf yco ycs ycu ycy yde ydo yds ydy yec yed yee yef yeo yer yes yey yfc yfd yfe yff yfr yfs yfu yoc yod yoe yof yoo yor yos you yoy yrc yre yrf yro yrs yru ysc yse yso ysr yss ysu ysy yud yue yuo yur yus yuu yuy yyc yye yyf yys yyu yyy