16 duplicated lines in:
  - data/kinetics_400/preprocess.py (32:47, 40%)
  - data/kinetics_600/preprocess.py (32:47, 40%)

13 duplicated lines in:
  - data/kinetics_400/preprocess.py (10:25, 32%)
  - data/kinetics_600/preprocess.py (10:25, 32%)