price = {
    'apple' : 75,
    'banana' : 66,
    'cereal' : 250,
    'ice cream' : 450,
    'lettuce' : 105,
    'milk' : 125,
    'soda' : 99,
}

groceries = ['milk', 'apple', 'apple', 'cereal', 'ice cream', 'lettuce']


total = 0
for item in groceries:
    total += price[item]

print(total)