output_description: Print the kyu M-kun has, as an integer. For example, if he has 8-kyu, print
  `8`.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      X
attempt: # m-solutions2020_a.py
  # https://atcoder.jp/contests/m-solutions2020 : A
  
  global FLAG_LOG
  FLAG_LOG = False
  
  
  def log(value):
      # FLAG_LOG = True
      # FLAG_LOG = False
      if FLAG_LOG:
          print(str(value))
  
  
  def calculation(lines):
      X = int(lines[0])
  
      if X < 600:
          ret = 8
      elif X < 800:
          ret = 7
      elif X < 1000:
          ret = 6
      elif X < 1200:
          ret = 5
      elif X < 1400:
          ret = 4
      elif X < 1600:
          ret = 3
      elif X < 1800:
          ret = 2
      else:
          ret = 1
  
      return [ret]
  
  
  # 引数を取得
  def get_input_lines(lines_count):
      lines = list()
      for _ in range(lines_count):
          lines.append(input())
      return lines
  
  
  # テストデータ
  def get_testdata(pattern):
      if pattern == 1:
          lines_input = [725]
          lines_export = [7]
      if pattern == 2:
          lines_input = [1600]
          lines_export = [2]
      return lines_input, lines_export
  
  
  # 動作モード判別
  def get_mode():
      import sys
  
      args = sys.argv
      global FLAG_LOG
      if len(args) == 1:
          mode = 0
          FLAG_LOG = False
      else:
          mode = int(args[1])
          FLAG_LOG = True
      return mode
  
  
  # 主処理
  def main():
      # import time
      # started = time.time()
      mode = get_mode()
      if mode == 0:
          lines_input = get_input_lines(1)
      else:
          lines_input, lines_export = get_testdata(mode)
  
      lines_result = calculation(lines_input)
  
      for line_result in lines_result:
          print(line_result)
  
      if mode > 0:
          print(f"lines_input=[{lines_input}]")
          print(f"lines_export=[{lines_export}]")
          print(f"lines_result=[{lines_result}]")
          if lines_result == lines_export:
              print("OK")
          else:
              print("NG")
      # finished = time.time()
      # duration = finished - started
      # print(f'duration=[{duration}]')
  
  
  # 起動処理
  if __name__ == "__main__":
      main()
  
problem_description: Statement
  
  M-kun is a competitor in AtCoder, whose highest rating is X.  
  In this site, a competitor is given a _kyu_ (class) according to his/her
  highest rating. For ratings from 400 through 1999, the following kyus are
  given:
  
    * From 400 through 599: 8-kyu
    * From 600 through 799: 7-kyu
    * From 800 through 999: 6-kyu
    * From 1000 through 1199: 5-kyu
    * From 1200 through 1399: 4-kyu
    * From 1400 through 1599: 3-kyu
    * From 1600 through 1799: 2-kyu
    * From 1800 through 1999: 1-kyu
  
  What kyu does M-kun have?
samples: [{"input": "725", "output": "7\n    \n\nM-kun's highest rating is 725, which corresponds to 7-kyu.  \nThus, `7` is the correct output.\n\n* * *"}, {"input": "1600", "output": "2\n    \n\nM-kun's highest rating is 1600, which corresponds to 2-kyu.  \nThus, `2` is the correct output."}]