#Initialize the dictionary of prices

prices = {'apple': 0.40, 'banana': 0.50, 'mango': 0.75, 'pear': 0.10}
my_purchase = {
	'apple' : 1,
	'mango' : 6}

#Initialize the grocery bill
grocery_bill = 0

#Loop through the items in my purchase, summing the total cost of each	
for fruit in my_purchase:
	grocery_bill += prices[fruit] * my_purchase[fruit]
	
print ('I owe the grocer $%.2f' % (grocery_bill))