old_contents: """
  Input 1:7
  Output 1:3
  
  Explaination:
  Binary representation of of 7 is "111" and number of set bits(ones) is 3.
  
  
  Input 1:23
  Output 1:4
  
  Explain:
  Binary representation of of 7 is "10111" and number of set bits(ones) is 4. 
  
  """
  
  num=7
  count=(bin(num)[2::]).count('1')
  print(count)
new_contents: """
  Input 1:7
  Output 1:3
  
  Explaination:
  Binary representation of of 7 is "111" and number of set bits(ones) is 3.
  
  
  Input 2:23
  Output 2:4
  
  Explain:
  Binary representation of of 7 is "10111" and number of set bits(ones) is 4. 
  
  """
  
  num=7
  count=(bin(num)[2::]).count('1')
  print(count)
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