comefrom: <qiyuangong>326_Power_of_Three_1.py
code: def isPowerOfThree( n):
      import math
      if n <= 0:
          return False
      
      log_res = round(math.log(n, 3), 10)
      if log_res - int(log_res) > 0:
          return False
      return True
masked: def sample_funcname ( var_0 ) :
      import var_1
      if var_0 <= 0 :
          return False
      var_8 = round ( var_1.log ( var_0 , 3 ) , 10 )
      if var_8 - int ( var_8 ) > 0 :
          return False
      return True
  