03. Flowers

# 03. Flowers

chrysanthemums = int(input()) # 2.00 3.75
roses = int(input())          # 4.10 4.50
tulips = int(input())         # 2.50 4.15
season = input() # [Spring, Summer, Аutumn, Winter
holiday = input()
chrysanthemums_price = 0
roses_price = 0
tulips_price = 0
flowers = chrysanthemums + roses + tulips
price = 0
if season == "Spring" or season == "Summer":
    chrysanthemums_price = 2.00
    roses_price = 4.10
    tulips_price = 2.50
    price = (chrysanthemums_price * chrysanthemums) + (roses_price * roses) + (tulips_price * tulips)
    if holiday == "Y":
        price = price + (price * 0.15)
        if season == "Spring" and tulips >= 7:
            price = price - (price * 0.05)
            if flowers >= 20:
                price = price - (price * 0.20)
        elif season == "Summer":
            if flowers >= 20:
                price = price - (price * 0.20)
    elif holiday == "N":
        if season == "Spring" and tulips >= 7:
            price = price - (price * 0.05)
            if flowers >= 20:
                price = price - (price * 0.20)
        elif season == "Summer":
            if flowers >= 20:
                price = price - (price * 0.20)
elif season == "Autumn" or season == "Winter":
    chrysanthemums_price = 3.75
    roses_price = 4.50
    tulips_price = 4.15
    price = (chrysanthemums_price * chrysanthemums) + (roses_price * roses) + (tulips_price * tulips)
    if holiday == "Y":
        price = price + (price * 0.15)
        if season == "Winter" and roses >= 10:
            price = price - (price * 0.10)
            if flowers >= 20:
                price = price - (price * 0.20)
        elif season == "Autumn":
            if flowers >= 20:
                price = price - (price * 0.20)
    elif holiday == "N":
        if season == "Winter" and roses >= 10:
            price = price - (price * 0.10)
            if flowers >= 20:
                price = price - (price * 0.20)
        elif season == "Autumn":
            if flowers >= 20:
                price = price - (price * 0.20)
print(f"{price + 2:.2f}")