('CID100010279', 1),WLN: QR CQ BV1
('CID100083643', 1),fr cf bv1
ldiff: defaultdict(<type 'list'>, {'CID100083643': [6], 'CID100010279': [11]})
f1: [11]
f2: [6]
c1: Counter({11: 1})
c2: Counter({6: 1})
The chosen was  ... CID100083643