output_description: If it is possible to construct a Haiku by using each of the phrases once,
  print `YES` (case-sensitive). Otherwise, print `NO`.
  
  * * *
input_description: The input is given from Standard Input in the following format:
  
      
      
      A B C
attempt: A=input()
  B=input()
  C=input()
  
  if len(A)=7 and len(B)=5 and len(C)=5 :
  	print("YES")
  else:
    	print("NO")
    
  if len(A)=5 and len(B)=7 and len(C)=5 :
  	print("YES")
  else:
    	print("NO")
      
  if len(A)=5 and len(B)=5 and len(C)=7 :
  	print("YES")
  else:
    	print("NO")
  
problem_description: Statement
  
  Iroha loves _Haiku_. Haiku is a short form of Japanese poetry. A Haiku
  consists of three phrases with 5, 7 and 5 syllables, in this order.
  
  To create a Haiku, Iroha has come up with three different phrases. These
  phrases have A, B and C syllables, respectively. Determine whether she can
  construct a Haiku by using each of the phrases once, in some order.
samples: [{"input": "5 5 7", "output": "YES\n    \n\nUsing three phrases of length 5, 5 and 7, it is possible to construct a Haiku.\n\n* * *"}, {"input": "7 7 5", "output": "NO"}]