Python problem:

Create a point of sale machine that contains the following items and their respective prices:

Item	Price
Shirt	10
Pants	15
Sweater	20
Socks	5
Hat	7

Each item should be kept inside of a dictionary along with its price. The program should list out the items and allow the user to type in what item theyd like to purchase. If the item doesnt exist, the program should tell the user it doesnt exist. If the item does exist then the program should keep a running total of all items selected and add the price of the item to the total (IE, if you choose Shirt your total is 10, if you then choose Hat your total is 17, etc). The total should be printed out after each addition.