객체 사용

Ruby

c1 = Cal.new(10,10)
p c1.add()
p c1.subtract()
c2 = Cal.new(30,20)
p c2.add()
p c2.subtract()

 Python

c1 = Cal(10,10)
print(c1.add())
print(c1.subtract())
c2 = Cal(30,20)
print(c2.add())
print(c2.subtract())