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import pandas as pd

import pandas as pd # data processing, CSV file I/O (e.g. pd.read_csv)

train_df = pd.read_csv('../input/covid19-global-forecasting-week-4/train.csv')
test_df = pd.read_csv('../input/covid19-global-forecasting-week-4/test.csv')

print('Min train date: ', train_df['Date'].min())
print('Max train date: ', train_df['Date'].max())
print('Min test date: ', test_df['Date'].min())
print('Max test date: ', test_df['Date'].max())