class students:
	def __init__ (self,a,b):
		self.name=a
		self.age=b

	def disp(self):
		print("name is "+self.name+" age is "+str(self.age))

class cld(students):
	def __init__(self):
		print("child")


c=cld()
a=students("jack",22)
a.disp()
c.disp()