class circle:
    PI=3.14
    def __init__(self,r,a,c):
        self.r=0.0
        self.a=0.0
        self.c=0.0
    
    def Accept(self):
        print("Enter value of radius\n")
        self.r=(float(input()))
    
    def CalculateArea(self):
        self.a= self.PI* self.r**2
        
    def Calculatecircumference(self):
        self.c=self.PI * self.r*2
    
    def Display(self):
        print("area is:{0} \n circumference is:{1}".format(self.a,self.c))

def main():
		obj1=circle(2,3,4 )
		obj2=circle(2,3,4 )
		
		obj1.Accept()
		obj1.CalculateArea()
		obj1.Calculatecircumference()
		obj1.Display()
		
		obj2.Accept()
		obj2.CalculateArea()
		obj2.Calculatecircumference()
		obj2.Display()

if __name__ == "__main__":
	main()