-er -ol c-- ccc cce ccf ccl cco ccr ccu ccz ce- cec cee cef cel ceo cer ceu cez cfc cfe cff cfl cfo cfr cfu cfz cl- clc cle clf cll clo clr clu clz co- coc coe cof col coo cor cou coz crc cre crf crl cro crr cru crz cuc cue cuf cul cuo cur cuu cuz cz- czc cze czo ec- ecc ece ecf ecl eco ecr ecu eec eee eef eel eeo eer ef- efc efe eff efl efo efr elc ele elf ell elo elr elu elz eo- eoc eoe eof eol eoo eor eou erc ere erf erl ero err eru erz eu- euc eue euf eul eur eze ezf ezo ezr ezz fcc fce fcf fcl fco fcr fcu fcz fec fee fef fel feo fer feu fez ffc ffe fff ffl ffo ffr ffu ffz flc fle flf fll flo flr flu foc foe fof fol foo for fou foz frc fre frf frl fro frr fru fue fuf ful fuo fur fuu lcc lce lcf lcl lco lcr lcu lec lee lef lel leo ler leu lez lfc lfe lff lfl lfo lfr lfu llc lle llf lll llo llr llu llz loc loe lof lol loo lor lou loz lrc lrf lro lrr lru lrz luc lue luf lul luo lur luu luz lzo lzr lzu oc- occ ocf ocl oco ocr ocu ocz oec oee oef oel oeo oer of- ofc ofe off ofl ofo ofr ofu ofz olc ole olf oll olo olu oo- ooc oof ool ooo oor or- orc ore orf orl oro orr oru orz ou- ouc oue ouf oul ouo our oze ozo ozu ozz rcc rce rcf rcl rco rcr rcu re- rec ree ref rel reo rer reu rez rfc rfe rff rfl rfo rfr rfu rfz rlc rle rlf rll rlo rlr rlu roc roe rof rol roo ror rou roz rrc rrf rrl rrr rru ruc rue ruf ruo rur ruu ruz rze rzo ucc uce ucf ucl uco ucr ucu uec uee uef uel uer ufc ufe uff ufl ufo ufr ufu ulc ule ulf ull ulo ulr ulu uoc uoe uol uoo uor ur- urc ure urf url uro urr uru urz uuc uue uur uuu uzo uzu zce zcl zco zec zee zef zel zeo zer zez zfc zfr zlr zo- zoc zoe zof zol zoo zor zou zrl zro zuc zul zur zuz zzr zzz