output_description: Print the answer.
  
  * * *
input_description: The input is given from Standard Input in the following format:
  
      
      
      x
attempt: x = int(input()
  print('ARC' if x >= 1200 else 'ABC')
  
problem_description: Statement
  
  Smeke has decided to participate in AtCoder Beginner Contest (ABC) if his
  current rating is less than 1200, and participate in AtCoder Regular Contest
  (ARC) otherwise.
  
  You are given Smeke's current rating, x. Print `ABC` if Smeke will participate
  in ABC, and print `ARC` otherwise.
samples: [{"input": "1000", "output": "ABC\n    \n\nSmeke's current rating is less than 1200, thus the output should be `ABC`.\n\n* * *"}, {"input": "2000", "output": "ARC\n    \n\nSmeke's current rating is not less than 1200, thus the output should be `ARC`."}]