output_description: If the concatenation of a and b in this order is a square number, print `Yes`;
  otherwise, print `No`.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      a b
attempt: a, b = map(str, input().split())
  import math
  
  def square(a, b):
    total = int(a+b)
    if math.square(total).is_integer() == True
      print('yes')
    else:
      print('no')
   
  square(a, b)
problem_description: Statement
  
  AtCoDeer the deer has found two positive integers, a and b. Determine whether
  the concatenation of a and b in this order is a square number.
samples: [{"input": "1 21", "output": "Yes\n    \n\nAs 121 = 11 \u00d7 11, it is a square number.\n\n* * *"}, {"input": "100 100", "output": "No\n    \n\n100100 is not a square number.\n\n* * *"}, {"input": "12 10", "output": "No"}]