class Square:
    def __init__(self, side_length):
        self.side_len = side_length
    def calcA(self):
        return self.side_len**2

class Circle:
    def __init__(self, rad):
        self.rad = radius
    def calcA(self):
        import math
        return math.pi*(self.rad**2)
    

print "test program"
print ""
print "Type '2' for calculating any square's area"
print "Type '1' for calculating any circle's area"

choice = input("Your choise: ")

if  choice == 1:
     radius = input("What is the circle's radius?: ")
     c = Circle(radius)
     print "The area is: %d" % c.calcA()
elif choice == 2:
     side_length = input("What is the square's side length? ")
     s = Square(side_length)
     print "The area is: %d" % s.calcA()
else:
  print("Wrong input")