import random

#declare variables
item_name = [""] * 30
item_price = [0.0] * 30
item_vat = [0.0] * 30
item_vat_num = [0.0] * 30
anymore = "YES"
VAT = 0.8
VAT2 = 0.2
counter = 1
counter2 = 1
num_item = 1
random_num = 0
random_num2 = 0
discount_a = 0.0
discont_b = 0.0

#get items and calculate VAT
while anymore.upper() == "YES":
    print("Please enter the name of item ",counter,".",sep = '')
    item_name[counter] = str(input())
    print("Please enter the price of ",item_name[counter],".",sep = '')
    item_price[counter] = float(input())
    item_vat[counter] = item_price[counter] * VAT
    item_vat_num[counter] = item_price[counter] * VAT2
    counter = counter + 1
    num_item = num_item + 1
    print("Would you like to select another item?")
    anymore = str(input())
    if anymore.upper() == "NO":
        anymore = "no"

#find random discount
random_num = random.randint(1,(num_item - 1))
random_num2 = random.randint(1,(num_item - 1))
if random_num == random_num2:
    random_num2 == random.randint(1(num_item - 1))


#display items
for loops in range(1,num_item):
    print("Item ",counter2, " was ",item_name[counter2], " and cost ",item_vat[counter2], ".",sep = '')
    print("The VAT was ",item_vat_num[counter2], "." ,sep = '')
    counter2 = counter2 + 1

#use loyalty discount
print("You got a discount on ",item_name[random_num], " and ",item_name[random_num2]," for 10% off thanks to a loyalty reward.",sep = '')
discount_a = item_price[random_num] * 0.9
discount_b = item_price[random_num2] * 0.9
print(item_name[random_num]," now costs ",discount_a," and ",item_name[random_num2]," now costs ",discount_b,"." ,sep = '')