-er -ol c-- ccc cce ccg ccl cco ccr ccu ccz ce- cec cee ceg cel ceo cer ceu cez cgc cge cgg cgl cgo cgr cgu cl- clc cle clg cll clo clr clu clz co- coc coe cog col coo cor cou coz crc cre crg crl cro crr cru crz cuc cue cug cul cuo cur cuu cuz cz- czc cze czo ec- ecc ece ecg ecl eco ecr ecu eec eee eeg eel eeo eer egc ege egg egl ego egr egu elc ele elg ell elo elr elu elz eo- eoc eoe eog eol eoo eor eou erc ere erg erl ero err eru erz eu- euc eue eug eul eur eze ezo ezr ezz gcc gce gcg gcl gco gcr gcu ge- gec gee geg gel geo ger geu gez ggc ggg ggo ggr ggu ggz glc gle glg gll glo glr glu glz goc goe gog gol goo gor gou goz grc gre grg grl gro grr gru gu- guc gue gug gul guo gur guu guz gzo gzr gzu lcc lce lcg lcl lco lcr lcu lec lee leg lel leo ler leu lez lgc lge lgg lgl lgo lgr lgu llc lle llg lll llo llr llu llz loc loe log lol loo lor lou loz lrc lrg lro lrr lru lrz luc lue lug lul luo lur luu luz lzo lzr lzu oc- occ ocg ocl oco ocr ocu ocz oec oee oeg oel oeo oer ogc oge ogg ogl ogo olc ole olg oll olo olu oo- ooc oog ool ooo oor or- orc ore org orl oro orr oru orz ou- ouc oue oul ouo our oze ozo ozu ozz rcc rce rcg rcl rco rcr rcu re- rec ree reg rel reo rer reu rez rgc rge rgg rgo rgr rlc rle rlg rll rlo rlr rlu roc roe rog rol roo ror rou roz rrc rrg rrl rrr rru ruc rue rug ruo rur ruu ruz rze rzo ucc uce ucg ucl uco ucr ucu uec uee ueg uel uer ugc uge ugg ugl ugo ugr ugu ulc ule ulg ull ulo ulr ulu uoc uoe uog uol uoo uor ur- urc ure urg url uro urr uru urz uuc uue uug uur uuu uzo uzu z-g zce zcl zco zec zee zel zeo zer zez zgg zlr zo- zoc zoe zog zol zoo zor zou zrl zro zuc zug zul zur zuz zzr zzz