output_description: If both E869120 and square1001 can obey the instruction in the note and take
  desired numbers of pieces of cake, print `Yay!`; otherwise, print `:(`.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      A B
attempt: numA numB = input()
  if(numA <=8 and numB <= 8):
      print('Yay!')
  else:
      print(':(')
  
problem_description: Statement
  
  E869120's and square1001's 16-th birthday is coming soon.  
  Takahashi from AtCoder Kingdom gave them a round cake cut into 16 equal fan-
  shaped pieces.
  
  E869120 and square1001 were just about to eat A and B of those pieces,
  respectively,  
  when they found a note attached to the cake saying that "the same person
  should not take two adjacent pieces of cake".
  
  Can both of them obey the instruction in the note and take desired numbers of
  pieces of cake?
samples: [{"input": "5 4", "output": "Yay!\n    \n\nBoth of them can take desired number of pieces as follows: ![\n](https://img.atcoder.jp/abc100/e87fa456a900ac9ae36671ae8bd5eeea.png)\n\n* * *"}, {"input": "8 8", "output": "Yay!\n    \n\nBoth of them can take desired number of pieces as follows: ![\n](https://img.atcoder.jp/abc100/a7989ac033e6ba86e14078864c20d9c5.png)\n\n* * *"}, {"input": "11 4", "output": ":(\n    \n\nIn this case, there is no way for them to take desired number of pieces,\nunfortunately."}]