How do I pass arguments to the superclass constructor while creating an object of the subclass in this case?

Question

class Super:
def __init__(self,x,y)
self.x=x
self.y=y
def show(self):
print("This prints multiplication")
print(self.x*self.y)
class Sub(Super):
def __init__(self,a,b):
self.a= a
self.b=b
def Show(self):
print("This prints addition)
print(self.a+self.b)