import datetime
 
def third_latest():
    timestamps = ['2011-06-2', '2011-08-05', '2011-02-04', '2010-1-14', '2010-12-13', '2010-1-12', '2010-2-11', '2010-2-07', '2010-12-02', '2011-11-30', '2010-11-26', '2010-11-23', '2010-11-22', '2010-11-16']
    dates = [datetime.datetime.strptime(ts, "%Y-%m-%d") for ts in timestamps]
    dates.sort()
    sorteddates = [datetime.datetime.strftime(ts, "%Y-%m-%d") for ts in dates]
    print sorteddates
    return str(sorteddates[3])
 
def main():
    third_latest()
 
if __name__ == "__main__":
    main()

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