-er c-- ccc ccd cce ccg ccl ccr ccu cdc cdd cde cdg cdl cdr cdu ce- cec ced cee ceg cel cer ceu cgc cgd cge cgg cgl cgr cgu cl- clc cld cle clg cll clr clu crc crd cre crg crl crr cru cuc cud cue cug cul cur cuu dcc dcd dce dcg dcl dcr dcu ddc ddd dde ddg ddl ddr ddu de- dec ded dee deg del der deu dgc dgd dge dgg dgl dgr dgu dl- dlc dld dle dlg dll dlr dlu drc drd dre drg drl drr dru duc dud due dug dul dur ec- ecc ecd ece ecg ecl ecr ecu ed- edc edd ede edg edl edr edu eec eed eee eeg eel eer egc egd ege egg egl egr egu elc eld ele elg ell elr elu erc erd ere erg erl err eru eu- euc eud eue eug eul eur g-d gcc gcd gce gcg gcl gcr gcu gdc gdd gde gdl gdr gdu ge- gec ged gee geg gel ger geu ggc ggd ggg ggr ggu glc gld gle glg gll glr glu grc grd gre grg grl grr gru gu- guc gud gue gug gul gur guu lcc lcd lce lcg lcl lcr lcu ldc ldd lde ldg ldl ldr ldu lec led lee leg lel ler leu lgc lgd lge lgg lgl lgr lgu llc lld lle llg lll llr llu lrc lrd lrg lrr lru luc lud lue lug lul lur luu rcc rcd rce rcg rcl rcr rcu rdc rdd rde rdg rdl rdr rdu re- rec red ree reg rel rer reu rgc rgd rge rgg rgr rlc rld rle rlg rll rlr rlu rrc rrd rrg rrl rrr rru ruc rud rue rug rur ruu ucc ucd uce ucg ucl ucr ucu udc udd ude udg udl udr udu uec ued uee ueg uel uer ugc uge ugg ugl ugr ugu ulc uld ule ulg ull ulr ulu ur- urc urd ure urg url urr uru uuc uue uug uur uuu