class Rectangle():
    def __init__(self, a, b):
        self.a = a
        self.b = b


    def calculateArea(self):
        area = int(self.a * self.b)
        print('Die Fläche hat den Wert: ', area)


    def calculateCircumference(self):
        circumference = int(2*self.a + 2*self.b)
        print('Der Umfang hat den Wert: ', circumference)