import rectangle

r1 = rectangle.Rectangle(5,3)
r2 = rectangle.Rectangle(9,2)
r3 = rectangle.Rectangle(50,80)
print(str(r1))
r1.set_length(4)
print(str(r1))
r1.set_length(-67)
print(str(r1))

###area1 = r1.area()

len1 = r1.get_length()
print('A ' + str(len1) + 'x' + str(r1.get_width()) + \
      ' rectangle.')

print('A ' + str(r3.get_length()) + 'x' + str(r3.get_width()) + \
      ' rectangle.')