('CID100025560', 6),.alpha.-N-Acetyl-L-glutamine
('CID100025560', 6),N-ACETYL-L-GLUTAMINE
('CID100025560', 6),N-Acetyl-L-glutamine aluminum salt
('CID100025560', 6),.alpha.-N-Acetyl-L-glutamine
('CID100025560', 6),N-Acetyl-L-glutamine
('CID100025560', 6),N-Acetyl-L-glutamine
('CID109794380', 4),N-acetyl-L-glutamine aluminum complex
('CID109794380', 4),N-Acetyl-L-glutamine aluminum salt
('CID109794380', 4),N-acetyl-L-glutamine aluminum complex
('CID109794380', 4),N-Acetyl-L-glutamine aluminum salt
ldiff: defaultdict(<type 'list'>, {'CID109794380': [17, 14, 17, 14], 'CID100025560': [8, 0, 14, 8, 0, 0]})
f1: [8, 0, 14, 8, 0, 0]
f2: [17, 14, 17, 14]
c1: Counter({0: 3, 8: 2, 14: 1})
c2: Counter({17: 2, 14: 2})
The chosen was ... CID100025560