text: from csv import reader
  
  # --- MAIN --- #
  with open('perdas_laminacao.csv', 'r', encoding="utf8") as file:
      largest = -1
      read = reader(file, delimiter=',')
      next(read) # Ignore first line
      for row in read:
          size = len(row[7])
          if (size > largest):
              largest = size
  
      print(largest)