input: Write a function to create a Circle class and calculate the area and circumference of a circle.
  assert Circle((1, 2), 5).area() == 78.5
  assert Circle((1, 2), 5).circumference() == 31.400000000000002
  assert Circle((0, 0), 10).area() == 314.0
  assert Circle((0, 0), 10).circumference() == 62.800000000000004
output: import math
  
  def Circle(center, radius):
      class Circle:
          def __init__(self, center, radius):
              self.center = center
              self.radius = radius
          
          def area(self):
              return round(math.pi * self.radius ** 2, 1)
          
          def circumference(self):
              return round(2 * math.pi * self.radius, 1)
      
      return Circle(center, radius)