output_description: If N contains the digit 7, print `Yes`; otherwise, print `No`.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      N
attempt: print("Hello, world!")
  print(1 + 2)
  
problem_description: Statement
  
  Given is a three-digit integer N. Does N contain the digit 7?
  
  If so, print `Yes`; otherwise, print `No`.
samples: [{"input": "117", "output": "Yes\n    \n\n117 contains 7 as its last digit.\n\n* * *"}, {"input": "123", "output": "No\n    \n\n123 does not contain the digit 7.\n\n* * *"}, {"input": "777", "output": "Yes"}]