def addition(a,b):
	return "{} + {} = {}".format(a,b,a+b)

def subtraction(a,b):
	return "{} - {} = {}".format(a,b,a-b)

def multiplication(a,b):
	return "{} * {} = {}".format(a,b,a*b)

def division(a,b):
	return "{} // {} = {}".format(a,b,a//b)