-er -ey c-- ccc ccd cce ccr ccu ccz cdc cdd cde cdr cdu cdy cdz ce- cec ced cee cer ceu cey cez crc crd cre crr cru cry crz cuc cud cue cur cuu cuy cuz cyc cyd cye cyr cz- czc czd cze dcc dcd dce dcr dcu ddc ddd dde ddr ddu ddy ddz de- dec ded dee der deu dey dez drc drd dre drr dru dry drz duc dud due dur duy duz dy- dyc dyd dye dyr dyu dyy dzd dze dzr dzu ec- ecc ecd ece ecr ecu ed- edc edd ede edr edu edy eec eed eee eer eey erc erd ere err eru ery erz eu- euc eud eue eur eyc eyd eye eyr eze ezr ezz rcc rcd rce rcr rcu rdc rdd rde rdr rdu rdy re- rec red ree rer reu rey rez rrc rrd rrr rru ruc rud rue rur ruu ruy ruz ry- ryc ryd rye ryr ryu ryy ryz rze rzy ucc ucd uce ucr ucu udc udd ude udr udu uec ued uee uer uey ur- urc urd ure urr uru ury urz uuc uue uur uuu uyc uyu uzu ycc ycd yce ycu ycy yde ydy yec yed yee yer yey yez yrc yre yru yud yue yur yuu yuy yyc yye yyu yyy yyz yzr yzu yzy zce zec zed zee zer zez zuc zud zur zuz zzr zzy zzz