output_description: Print the answer as an integer.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      A B
attempt: A, B = 999990000000010, 9.90
  B_ = int(B * 100)
  C = str(A * B_)
  D = C[:-2]
  E = C[-2:]
  D, E
  if E == "00":
      print(D)
  else:
      print(D + "." + E)
  
problem_description: Statement
  
  Compute A \times B, truncate its fractional part, and print the result as an
  integer.
samples: [{"input": "198 1.10", "output": "217\n    \n\nWe have 198 \\times 1.10 = 217.8. After truncating the fractional part, we have\nthe answer: 217.\n\n* * *"}, {"input": "1 0.01", "output": "0\n    \n\n* * *"}, {"input": "1000000000000000 9.99", "output": "9990000000000000"}]