how_many = int(input("how many items do you need? "))
shopping = [[], []]

for item_number in range(how_many):
    item = input("what is item " + str(item_number) + " ? ")
    shopping[0].append(item)
    price = float(input("how much does that cost? "))
    shopping[1].append(price)

count = 0
item2 = -1
price = 0
print
print("you have " + str(how_many) + " items in your shopping list:")
print()
print()
print("    CUSTOMER SHOPPING LIST")
for item in shopping[0]:
    item2 = int(item2 + 1)

    price = shopping[1][item2]

    print("    " + (item) + " costing " + str(price))

total = 0
for item_number in range(how_many):
    total = total + shopping[1][count]
    count = count + 1

print("the total for your groceries will be " + str(total))