('CID123349821', 3),allyl(methyl)amine; N-cyclohexylformamide
('CID123349821', 3),N-cyclohexylformamide; N-methyl-2-propen-1-amine
('CID123349821', 3),N-cyclohexylformamide; N-methylprop-2-en-1-amine
('CID100013017', 3),Cyclohexylformamide
('CID100013017', 3),N-Cyclohexylformamid
('CID100013017', 3),N-Cyclohexylformamide
ldiff: defaultdict(<type 'list'>, {'CID100013017': [0, 1, 2], 'CID123349821': [22, 29, 29]})
f1: [22, 29, 29]
f2: [0, 1, 2]
c1: Counter({29: 2, 22: 1})
c2: Counter({0: 1, 1: 1, 2: 1})
The chosen was  ... CID100013017