new_contents: import csv
  import datetime
  import json
  import re
  
  def main():
    input = open('out.csv', 'r')
  
    csvfile = open('out_synthetic.csv', 'wb')
    writeout = csv.writer(csvfile)
  
    limit = -1 # -1 means no limit
    i = 0
    while limit < 0 or i < limit:
      i += 1
  
      input_line = input.readline()
  
      if '\n' not in input_line:
        exit(0)
  
      timestampMs, latitudeE7, longitudeE7 = map(int, input_line.split(','))
  
      dt = datetime.datetime.fromtimestamp(timestampMs/1000.0)
      year = dt.year
      month = dt.month
      day = dt.day
      hour = dt.hour
      minute = dt.minute
  
      row = [
              timestampMs,
              latitudeE7,
              longitudeE7,
              year,
              month,
              day,
              hour,
              minute
      ]
      writeout.writerow(row)
  
  if __name__ == '__main__':
    main()
  
subject: Add synthetic features