base_price = 800
discounts = [ 0, .05, .10, .20, .25]

def calculate_discounts(book_counts):
    book_count = 0
    for k, v in book_counts.items():
        if v > 0:
            book_counts[k] -= 1
            book_count += 1
    if book_count == 0:
        return 0
    print(f"Books: {book_count} * Base Price: {base_price} * Discount: {discounts[book_count-1]}")
    return book_count * base_price * (1-discounts[book_count-1]) + calculate_discounts(book_counts)


def total(basket):
    book_counts = {}
    for i in basket:
        book_counts[i] = book_counts.get(i, 0) + 1

    return calculate_discounts(book_counts)