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 = input().split()
  A = A[::-1]
  B = str(B[0] + B[2] + B[3])[::-1]
  ans = [0] * 20
  for i in range(len(B)):
      for j in range(i, len(A) + i):
          ans[j] += int(A[j - i]) * int(B[i])
  for i in range(19):
      ans[i + 1] += ans[i] // 10
      ans[i] = ans[i] % 10
  ans = ans[2:]
  ans = "".join([str(a) for a in ans])[::-1]
  print(int(ans))
  
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"}]