def multi_multiply(*factors):
	output = 1
	for factor in factors:
		output *= factor
	return output
	
def purchase(inventory, **purchase):
	for item in purchase:
		if item in inventory:
			inventory[item] = purchase[item]
			
print multi_multiply(2, 2)
print multi_multiply(2, 2, 3, 5)

fruit = {
	'apples': 10,
	'oranges': 23
}

purchase(fruit, apples =5, bananas = 15)

print fruit['apples']