text: import csv
  
  # Read csv file
  f1= open('D:/csv_files/devices_usage.csv', 'r')
  f2= open('D:/csv_files/lusd_verified_verizon.csv', 'r')
  
  #Turn file into a Dictionary list
  list1 = csv.DictReader(f1)
  list2 = csv.DictReader(f2)
  
  #Read only the column named 'column_IMEI' store it in a list
  imei_1 = []
  for column in list1:
      imei_1.append(column['column_IMEI'])
  
  #Read only the column named 'column_IMEI' store it in a list
  imei_2 = []
  for column in list2:
      imei_2.append(column['column_IMEI'])
  
  #Compare the values of two lists output the similarity store it in a list
  imei_3 = []
  for column in imei_1:
      if column in imei_2:
          if column is not imei_3:
              imei_3.append(column)
  
  #Test the new list
  # print(imei_3)
  
  #Create a csv file
  file = open('D:/csv_files/same_imei_hotspots.csv', 'w', newline='')
  
  #Write to the csv file
  outputWriter = csv.writer(file)
  outputWriter.writerow(['IMEI_Column'])
  outputWriter.writerows([imei_3])
  file.close()