output_description: If we have x hours until New Year at M o'clock on 30th, December, print x.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      M
attempt: i = 48 - i
  print(input())
  
problem_description: Statement
  
  How many hours do we have until New Year at M o'clock (24-hour notation) on
  30th, December?
samples: [{"input": "21", "output": "27\n    \n\nWe have 27 hours until New Year at 21 o'clock on 30th, December.\n\n* * *"}, {"input": "12", "output": "36"}]