Standard input is empty

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datetime.date(2017, 12, 5), datetime.date(2017, 4, 5), datetime.date(2017, 3, 23), datetime.date(2017, 2, 18), datetime.date(2017, 2, 5), datetime.date(2017, 1, 12), datetime.date(2018, 12, 5), datetime.date(2018, 4, 5), datetime.date(2018, 3, 23), datetime.date(2018, 2, 18), datetime.date(2018, 2, 5), datetime.date(2018, 1, 12), datetime.date(2019, 12, 5), datetime.date(2019, 4, 5), datetime.date(2019, 3, 23), datetime.date(2019, 2, 18), datetime.date(2019, 2, 5), datetime.date(2019, 1, 12), datetime.date(2020, 12, 5), datetime.date(2020, 4, 5), datetime.date(2020, 3, 23), datetime.date(2020, 2, 18), datetime.date(2020, 2, 5), datetime.date(2020, 1, 12), datetime.date(2004, 12, 5), datetime.date(2004, 4, 5), datetime.date(2004, 3, 23), datetime.date(2004, 2, 18), datetime.date(2004, 2, 5), datetime.date(2004, 1, 12), datetime.date(2005, 12, 5), datetime.date(2005, 4, 5), datetime.date(2005, 3, 23), datetime.date(2005, 2, 18), datetime.date(2005, 2, 5), datetime.date(2005, 1, 12), datetime.date(2006, 12, 5), datetime.date(2006, 4, 5), datetime.date(2006, 3, 23), datetime.date(2006, 2, 18), datetime.date(2006, 2, 5), datetime.date(2006, 1, 12), datetime.date(2007, 12, 5), datetime.date(2007, 4, 5), datetime.date(2007, 3, 23), datetime.date(2007, 2, 18), datetime.date(2007, 2, 5), datetime.date(2007, 1, 12), datetime.date(2008, 12, 5), datetime.date(2008, 4, 5), datetime.date(2008, 3, 23), datetime.date(2008, 2, 18), datetime.date(2008, 2, 5), datetime.date(2008, 1, 12), datetime.date(2009, 12, 5), datetime.date(2009, 4, 5), datetime.date(2009, 3, 23), datetime.date(2009, 2, 18), datetime.date(2009, 2, 5), datetime.date(2009, 1, 12), datetime.date(2010, 12, 5), datetime.date(2010, 4, 5), datetime.date(2010, 3, 23), datetime.date(2010, 2, 18), datetime.date(2010, 2, 5), datetime.date(2010, 1, 12), datetime.date(2011, 12, 5), datetime.date(2011, 4, 5), datetime.date(2011, 3, 23), datetime.date(2011, 2, 18), datetime.date(2011, 2, 5), datetime.date(2011, 1, 12), datetime.date(2012, 12, 5), datetime.date(2012, 4, 5), datetime.date(2012, 3, 23), datetime.date(2012, 2, 18), datetime.date(2012, 2, 5), datetime.date(2012, 1, 12), datetime.date(2013, 12, 5), datetime.date(2013, 4, 5), datetime.date(2013, 3, 23), datetime.date(2013, 2, 18), datetime.date(2013, 2, 5), datetime.date(2013, 1, 12), datetime.date(2014, 12, 5), datetime.date(2014, 4, 5), datetime.date(2014, 3, 23), datetime.date(2014, 2, 18), datetime.date(2014, 2, 5), datetime.date(2014, 1, 12), datetime.date(2015, 12, 5), datetime.date(2015, 4, 5), datetime.date(2015, 3, 23), datetime.date(2015, 2, 18), datetime.date(2015, 2, 5), datetime.date(2015, 1, 12), datetime.date(2016, 12, 5), datetime.date(2016, 4, 5), datetime.date(2016, 3, 23), datetime.date(2016, 2, 18), datetime.date(2016, 2, 5), datetime.date(2016, 1, 12), datetime.date(2017, 12, 5), datetime.date(2017, 4, 5), datetime.date(2017, 3, 23), datetime.date(2017, 2, 18), datetime.date(2017, 2, 5), datetime.date(2017, 1, 12), datetime.date(2018, 12, 5), datetime.date(2018, 4, 5), datetime.date(2018, 3, 23), datetime.date(2018, 2, 18), datetime.date(2018, 2, 5), datetime.date(2018, 1, 12), datetime.date(2019, 12, 5), datetime.date(2019, 4, 5), datetime.date(2019, 3, 23), datetime.date(2019, 2, 18), datetime.date(2019, 2, 5), datetime.date(2019, 1, 12), datetime.date(2020, 12, 5), datetime.date(2020, 4, 5), datetime.date(2020, 3, 23), datetime.date(2020, 2, 18), datetime.date(2020, 2, 5), datetime.date(2020, 1, 12), datetime.date(2004, 12, 5), datetime.date(2004, 4, 5), datetime.date(2004, 3, 23), datetime.date(2004, 2, 18), datetime.date(2004, 2, 5), datetime.date(2004, 1, 12), datetime.date(2005, 12, 5), datetime.date(2005, 4, 5), datetime.date(2005, 3, 23), datetime.date(2005, 2, 18), datetime.date(2005, 2, 5), datetime.date(2005, 1, 12), datetime.date(2006, 12, 5), datetime.date(2006, 4, 5), datetime.date(2006, 3, 23), datetime.date(2006, 2, 18), datetime.date(2006, 2, 5), datetime.date(2006, 1, 12), datetime.date(2007, 12, 5), datetime.date(2007, 4, 5), datetime.date(2007, 3, 23), datetime.date(2007, 2, 18), datetime.date(2007, 2, 5), datetime.date(2007, 1, 12), datetime.date(2008, 12, 5), datetime.date(2008, 4, 5), datetime.date(2008, 3, 23), datetime.date(2008, 2, 18), datetime.date(2008, 2, 5), datetime.date(2008, 1, 12), datetime.date(2009, 12, 5), datetime.date(2009, 4, 5), datetime.date(2009, 3, 23), datetime.date(2009, 2, 18), datetime.date(2009, 2, 5), datetime.date(2009, 1, 12), datetime.date(2010, 12, 5), datetime.date(2010, 4, 5), datetime.date(2010, 3, 23), datetime.date(2010, 2, 18), datetime.date(2010, 2, 5), datetime.date(2010, 1, 12), datetime.date(2011, 12, 5), datetime.date(2011, 4, 5), datetime.date(2011, 3, 23), datetime.date(2011, 2, 18), datetime.date(2011, 2, 5), datetime.date(2011, 1, 12), datetime.date(2012, 12, 5), datetime.date(2012, 4, 5), datetime.date(2012, 3, 23), datetime.date(2012, 2, 18), datetime.date(2012, 2, 5), datetime.date(2012, 1, 12), datetime.date(2013, 12, 5), datetime.date(2013, 4, 5), datetime.date(2013, 3, 23), datetime.date(2013, 2, 18), datetime.date(2013, 2, 5), datetime.date(2013, 1, 12), datetime.date(2014, 12, 5), datetime.date(2014, 4, 5), datetime.date(2014, 3, 23), datetime.date(2014, 2, 18), datetime.date(2014, 2, 5), datetime.date(2014, 1, 12), datetime.date(2015, 12, 5), datetime.date(2015, 4, 5), datetime.date(2015, 3, 23), datetime.date(2015, 2, 18), datetime.date(2015, 2, 5), datetime.date(2015, 1, 12), datetime.date(2016, 12, 5), datetime.date(2016, 4, 5), datetime.date(2016, 3, 23), datetime.date(2016, 2, 18), datetime.date(2016, 2, 5), datetime.date(2016, 1, 12), datetime.date(2017, 12, 5), datetime.date(2017, 4, 5), datetime.date(2017, 3, 23), datetime.date(2017, 2, 18), datetime.date(2017, 2, 5), datetime.date(2017, 1, 12), datetime.date(2018, 12, 5), datetime.date(2018, 4, 5), datetime.date(2018, 3, 23), datetime.date(2018, 2, 18), datetime.date(2018, 2, 5), datetime.date(2018, 1, 12), datetime.date(2019, 12, 5), datetime.date(2019, 4, 5), datetime.date(2019, 3, 23), datetime.date(2019, 2, 18), datetime.date(2019, 2, 5), datetime.date(2019, 1, 12), datetime.date(2020, 12, 5), datetime.date(2020, 4, 5), datetime.date(2020, 3, 23), datetime.date(2020, 2, 18), datetime.date(2020, 2, 5), datetime.date(2020, 1, 12)]